From 1589f08e28b248874663b41cce2ba74e60e4cfba Mon Sep 17 00:00:00 2001 From: Yoshi Automation Bot Date: Mon, 18 Nov 2019 10:13:21 -0800 Subject: [PATCH 1/4] docs: regenerate generated javadoc (#43) --- .../cloud/trace/v1/TraceServiceClient.java | 184 ++++++------ .../cloud/trace/v1/TraceServiceSettings.java | 32 +- .../google/cloud/trace/v1/package-info.java | 4 +- .../trace/v1/stub/GrpcTraceServiceStub.java | 80 ++--- .../cloud/trace/v1/stub/TraceServiceStub.java | 16 +- .../v1/stub/TraceServiceStubSettings.java | 72 ++--- .../cloud/trace/v2/TraceServiceClient.java | 8 +- .../trace/v1/TraceServiceClientTest.java | 52 ++-- .../cloudtrace/v1/GetTraceRequest.java | 56 ++-- .../v1/GetTraceRequestOrBuilder.java | 16 +- .../cloudtrace/v1/ListTracesRequest.java | 164 +++++----- .../v1/ListTracesRequestOrBuilder.java | 46 +-- .../cloudtrace/v1/ListTracesResponse.java | 46 +-- .../v1/ListTracesResponseOrBuilder.java | 10 +- .../cloudtrace/v1/PatchTracesRequest.java | 100 ++++--- .../v1/PatchTracesRequestOrBuilder.java | 26 +- .../google/devtools/cloudtrace/v1/Trace.java | 21 +- .../cloudtrace/v1/TraceOrBuilder.java | 6 +- .../devtools/cloudtrace/v1/TraceProto.java | 117 +++++--- .../devtools/cloudtrace/v1/TraceSpan.java | 38 +-- .../cloudtrace/v1/TraceSpanOrBuilder.java | 10 +- .../google/devtools/cloudtrace/v1/trace.proto | 67 +++-- .../cloudtrace/v2/BatchWriteSpansRequest.java | 166 +++++++---- .../v2/BatchWriteSpansRequestOrBuilder.java | 38 ++- .../google/devtools/cloudtrace/v2/Span.java | 280 ++++++++++-------- .../devtools/cloudtrace/v2/SpanOrBuilder.java | 54 ++-- .../devtools/cloudtrace/v2/TraceProto.java | 177 +++++------ .../devtools/cloudtrace/v2/TracingProto.java | 54 ++-- .../google/devtools/cloudtrace/v2/trace.proto | 22 +- .../devtools/cloudtrace/v2/tracing.proto | 25 +- synth.metadata | 10 +- 31 files changed, 1133 insertions(+), 864 deletions(-) diff --git a/google-cloud-trace/src/main/java/com/google/cloud/trace/v1/TraceServiceClient.java b/google-cloud-trace/src/main/java/com/google/cloud/trace/v1/TraceServiceClient.java index 0d45805d..73d225a7 100644 --- a/google-cloud-trace/src/main/java/com/google/cloud/trace/v1/TraceServiceClient.java +++ b/google-cloud-trace/src/main/java/com/google/cloud/trace/v1/TraceServiceClient.java @@ -54,8 +54,8 @@ * * try (TraceServiceClient traceServiceClient = TraceServiceClient.create()) { * String projectId = ""; - * Traces traces = Traces.newBuilder().build(); - * traceServiceClient.patchTraces(projectId, traces); + * String traceId = ""; + * Trace response = traceServiceClient.getTrace(projectId, traceId); * } * * @@ -165,85 +165,105 @@ public TraceServiceStub getStub() { // AUTO-GENERATED DOCUMENTATION AND METHOD /** - * Sends new traces to Stackdriver Trace or updates existing traces. If the ID of a trace that you - * send matches that of an existing trace, any fields in the existing trace and its spans are - * overwritten by the provided values, and any new fields provided are merged with the existing - * trace data. If the ID does not match, a new trace is created. + * Returns of a list of traces that match the specified filter conditions. * *

Sample code: * * 


    * try (TraceServiceClient traceServiceClient = TraceServiceClient.create()) {
    *   String projectId = "";
-   *   Traces traces = Traces.newBuilder().build();
-   *   traceServiceClient.patchTraces(projectId, traces);
+   *   for (Trace element : traceServiceClient.listTraces(projectId).iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
    * }
    *
* - * @param projectId ID of the Cloud project where the trace data is stored. - * @param traces The body of the message. + * @param projectId Required. ID of the Cloud project where the trace data is stored. * @throws com.google.api.gax.rpc.ApiException if the remote call fails */ - public final void patchTraces(String projectId, Traces traces) { - - PatchTracesRequest request = - PatchTracesRequest.newBuilder().setProjectId(projectId).setTraces(traces).build(); - patchTraces(request); + public final ListTracesPagedResponse listTraces(String projectId) { + ListTracesRequest request = ListTracesRequest.newBuilder().setProjectId(projectId).build(); + return listTraces(request); } // AUTO-GENERATED DOCUMENTATION AND METHOD /** - * Sends new traces to Stackdriver Trace or updates existing traces. If the ID of a trace that you - * send matches that of an existing trace, any fields in the existing trace and its spans are - * overwritten by the provided values, and any new fields provided are merged with the existing - * trace data. If the ID does not match, a new trace is created. + * Returns of a list of traces that match the specified filter conditions. * *

Sample code: * * 


    * try (TraceServiceClient traceServiceClient = TraceServiceClient.create()) {
    *   String projectId = "";
-   *   Traces traces = Traces.newBuilder().build();
-   *   PatchTracesRequest request = PatchTracesRequest.newBuilder()
+   *   ListTracesRequest request = ListTracesRequest.newBuilder()
    *     .setProjectId(projectId)
-   *     .setTraces(traces)
    *     .build();
-   *   traceServiceClient.patchTraces(request);
+   *   for (Trace element : traceServiceClient.listTraces(request).iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
    * }
    *
* * @param request The request object containing all of the parameters for the API call. * @throws com.google.api.gax.rpc.ApiException if the remote call fails */ - public final void patchTraces(PatchTracesRequest request) { - patchTracesCallable().call(request); + public final ListTracesPagedResponse listTraces(ListTracesRequest request) { + return listTracesPagedCallable().call(request); } // AUTO-GENERATED DOCUMENTATION AND METHOD /** - * Sends new traces to Stackdriver Trace or updates existing traces. If the ID of a trace that you - * send matches that of an existing trace, any fields in the existing trace and its spans are - * overwritten by the provided values, and any new fields provided are merged with the existing - * trace data. If the ID does not match, a new trace is created. + * Returns of a list of traces that match the specified filter conditions. * *

Sample code: * * 


    * try (TraceServiceClient traceServiceClient = TraceServiceClient.create()) {
    *   String projectId = "";
-   *   Traces traces = Traces.newBuilder().build();
-   *   PatchTracesRequest request = PatchTracesRequest.newBuilder()
+   *   ListTracesRequest request = ListTracesRequest.newBuilder()
    *     .setProjectId(projectId)
-   *     .setTraces(traces)
    *     .build();
-   *   ApiFuture<Void> future = traceServiceClient.patchTracesCallable().futureCall(request);
+   *   ApiFuture<ListTracesPagedResponse> future = traceServiceClient.listTracesPagedCallable().futureCall(request);
    *   // Do something
-   *   future.get();
+   *   for (Trace element : future.get().iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
    * }
    *
*/ - public final UnaryCallable patchTracesCallable() { - return stub.patchTracesCallable(); + public final UnaryCallable listTracesPagedCallable() { + return stub.listTracesPagedCallable(); + } + + // AUTO-GENERATED DOCUMENTATION AND METHOD + /** + * Returns of a list of traces that match the specified filter conditions. + * + *

Sample code: + * + * 


+   * try (TraceServiceClient traceServiceClient = TraceServiceClient.create()) {
+   *   String projectId = "";
+   *   ListTracesRequest request = ListTracesRequest.newBuilder()
+   *     .setProjectId(projectId)
+   *     .build();
+   *   while (true) {
+   *     ListTracesResponse response = traceServiceClient.listTracesCallable().call(request);
+   *     for (Trace element : response.getTracesList()) {
+   *       // doThingsWith(element);
+   *     }
+   *     String nextPageToken = response.getNextPageToken();
+   *     if (!Strings.isNullOrEmpty(nextPageToken)) {
+   *       request = request.toBuilder().setPageToken(nextPageToken).build();
+   *     } else {
+   *       break;
+   *     }
+   *   }
+   * }
+   *
+ */ + public final UnaryCallable listTracesCallable() { + return stub.listTracesCallable(); } // AUTO-GENERATED DOCUMENTATION AND METHOD @@ -260,8 +280,8 @@ public final UnaryCallable patchTracesCallable() { * } * * - * @param projectId ID of the Cloud project where the trace data is stored. - * @param traceId ID of the trace to return. + * @param projectId Required. ID of the Cloud project where the trace data is stored. + * @param traceId Required. ID of the trace to return. * @throws com.google.api.gax.rpc.ApiException if the remote call fails */ public final Trace getTrace(String projectId, String traceId) { @@ -322,105 +342,85 @@ public final UnaryCallable getTraceCallable() { // AUTO-GENERATED DOCUMENTATION AND METHOD /** - * Returns of a list of traces that match the specified filter conditions. + * Sends new traces to Stackdriver Trace or updates existing traces. If the ID of a trace that you + * send matches that of an existing trace, any fields in the existing trace and its spans are + * overwritten by the provided values, and any new fields provided are merged with the existing + * trace data. If the ID does not match, a new trace is created. * *

Sample code: * * 


    * try (TraceServiceClient traceServiceClient = TraceServiceClient.create()) {
    *   String projectId = "";
-   *   for (Trace element : traceServiceClient.listTraces(projectId).iterateAll()) {
-   *     // doThingsWith(element);
-   *   }
+   *   Traces traces = Traces.newBuilder().build();
+   *   traceServiceClient.patchTraces(projectId, traces);
    * }
    *
* - * @param projectId ID of the Cloud project where the trace data is stored. + * @param projectId Required. ID of the Cloud project where the trace data is stored. + * @param traces Required. The body of the message. * @throws com.google.api.gax.rpc.ApiException if the remote call fails */ - public final ListTracesPagedResponse listTraces(String projectId) { - ListTracesRequest request = ListTracesRequest.newBuilder().setProjectId(projectId).build(); - return listTraces(request); + public final void patchTraces(String projectId, Traces traces) { + + PatchTracesRequest request = + PatchTracesRequest.newBuilder().setProjectId(projectId).setTraces(traces).build(); + patchTraces(request); } // AUTO-GENERATED DOCUMENTATION AND METHOD /** - * Returns of a list of traces that match the specified filter conditions. + * Sends new traces to Stackdriver Trace or updates existing traces. If the ID of a trace that you + * send matches that of an existing trace, any fields in the existing trace and its spans are + * overwritten by the provided values, and any new fields provided are merged with the existing + * trace data. If the ID does not match, a new trace is created. * *

Sample code: * * 


    * try (TraceServiceClient traceServiceClient = TraceServiceClient.create()) {
    *   String projectId = "";
-   *   ListTracesRequest request = ListTracesRequest.newBuilder()
+   *   Traces traces = Traces.newBuilder().build();
+   *   PatchTracesRequest request = PatchTracesRequest.newBuilder()
    *     .setProjectId(projectId)
+   *     .setTraces(traces)
    *     .build();
-   *   for (Trace element : traceServiceClient.listTraces(request).iterateAll()) {
-   *     // doThingsWith(element);
-   *   }
+   *   traceServiceClient.patchTraces(request);
    * }
    *
* * @param request The request object containing all of the parameters for the API call. * @throws com.google.api.gax.rpc.ApiException if the remote call fails */ - public final ListTracesPagedResponse listTraces(ListTracesRequest request) { - return listTracesPagedCallable().call(request); + public final void patchTraces(PatchTracesRequest request) { + patchTracesCallable().call(request); } // AUTO-GENERATED DOCUMENTATION AND METHOD /** - * Returns of a list of traces that match the specified filter conditions. + * Sends new traces to Stackdriver Trace or updates existing traces. If the ID of a trace that you + * send matches that of an existing trace, any fields in the existing trace and its spans are + * overwritten by the provided values, and any new fields provided are merged with the existing + * trace data. If the ID does not match, a new trace is created. * *

Sample code: * * 


    * try (TraceServiceClient traceServiceClient = TraceServiceClient.create()) {
    *   String projectId = "";
-   *   ListTracesRequest request = ListTracesRequest.newBuilder()
+   *   Traces traces = Traces.newBuilder().build();
+   *   PatchTracesRequest request = PatchTracesRequest.newBuilder()
    *     .setProjectId(projectId)
+   *     .setTraces(traces)
    *     .build();
-   *   ApiFuture<ListTracesPagedResponse> future = traceServiceClient.listTracesPagedCallable().futureCall(request);
+   *   ApiFuture<Void> future = traceServiceClient.patchTracesCallable().futureCall(request);
    *   // Do something
-   *   for (Trace element : future.get().iterateAll()) {
-   *     // doThingsWith(element);
-   *   }
-   * }
-   *
- */ - public final UnaryCallable listTracesPagedCallable() { - return stub.listTracesPagedCallable(); - } - - // AUTO-GENERATED DOCUMENTATION AND METHOD - /** - * Returns of a list of traces that match the specified filter conditions. - * - *

Sample code: - * - * 


-   * try (TraceServiceClient traceServiceClient = TraceServiceClient.create()) {
-   *   String projectId = "";
-   *   ListTracesRequest request = ListTracesRequest.newBuilder()
-   *     .setProjectId(projectId)
-   *     .build();
-   *   while (true) {
-   *     ListTracesResponse response = traceServiceClient.listTracesCallable().call(request);
-   *     for (Trace element : response.getTracesList()) {
-   *       // doThingsWith(element);
-   *     }
-   *     String nextPageToken = response.getNextPageToken();
-   *     if (!Strings.isNullOrEmpty(nextPageToken)) {
-   *       request = request.toBuilder().setPageToken(nextPageToken).build();
-   *     } else {
-   *       break;
-   *     }
-   *   }
+   *   future.get();
    * }
    *
*/ - public final UnaryCallable listTracesCallable() { - return stub.listTracesCallable(); + public final UnaryCallable patchTracesCallable() { + return stub.patchTracesCallable(); } @Override diff --git a/google-cloud-trace/src/main/java/com/google/cloud/trace/v1/TraceServiceSettings.java b/google-cloud-trace/src/main/java/com/google/cloud/trace/v1/TraceServiceSettings.java index 1261fc7d..1c2e2925 100644 --- a/google-cloud-trace/src/main/java/com/google/cloud/trace/v1/TraceServiceSettings.java +++ b/google-cloud-trace/src/main/java/com/google/cloud/trace/v1/TraceServiceSettings.java @@ -54,13 +54,13 @@ *

The builder of this class is recursive, so contained classes are themselves builders. When * build() is called, the tree of builders is called to create the complete settings object. * - *

For example, to set the total timeout of patchTraces to 30 seconds: + *

For example, to set the total timeout of getTrace to 30 seconds: * * 

  * 
  * TraceServiceSettings.Builder traceServiceSettingsBuilder =
  *     TraceServiceSettings.newBuilder();
- * traceServiceSettingsBuilder.patchTracesSettings().getRetrySettings().toBuilder()
+ * traceServiceSettingsBuilder.getTraceSettings().getRetrySettings().toBuilder()
  *     .setTotalTimeout(Duration.ofSeconds(30));
  * TraceServiceSettings traceServiceSettings = traceServiceSettingsBuilder.build();
  * 
@@ -69,9 +69,10 @@
 @Generated("by gapic-generator")
 @BetaApi
 public class TraceServiceSettings extends ClientSettings {
-  /** Returns the object with the settings used for calls to patchTraces. */
-  public UnaryCallSettings patchTracesSettings() {
-    return ((TraceServiceStubSettings) getStubSettings()).patchTracesSettings();
+  /** Returns the object with the settings used for calls to listTraces. */
+  public PagedCallSettings
+      listTracesSettings() {
+    return ((TraceServiceStubSettings) getStubSettings()).listTracesSettings();
   }
 
   /** Returns the object with the settings used for calls to getTrace. */
@@ -79,10 +80,9 @@ public UnaryCallSettings getTraceSettings() {
     return ((TraceServiceStubSettings) getStubSettings()).getTraceSettings();
   }
 
-  /** Returns the object with the settings used for calls to listTraces. */
-  public PagedCallSettings
-      listTracesSettings() {
-    return ((TraceServiceStubSettings) getStubSettings()).listTracesSettings();
+  /** Returns the object with the settings used for calls to patchTraces. */
+  public UnaryCallSettings patchTracesSettings() {
+    return ((TraceServiceStubSettings) getStubSettings()).patchTracesSettings();
   }
 
   public static final TraceServiceSettings create(TraceServiceStubSettings stub)
@@ -182,9 +182,10 @@ public Builder applyToAllUnaryMethods(
       return this;
     }
 
-    /** Returns the builder for the settings used for calls to patchTraces. */
-    public UnaryCallSettings.Builder patchTracesSettings() {
-      return getStubSettingsBuilder().patchTracesSettings();
+    /** Returns the builder for the settings used for calls to listTraces. */
+    public PagedCallSettings.Builder
+        listTracesSettings() {
+      return getStubSettingsBuilder().listTracesSettings();
     }
 
     /** Returns the builder for the settings used for calls to getTrace. */
@@ -192,10 +193,9 @@ public UnaryCallSettings.Builder getTraceSettings() {
       return getStubSettingsBuilder().getTraceSettings();
     }
 
-    /** Returns the builder for the settings used for calls to listTraces. */
-    public PagedCallSettings.Builder
-        listTracesSettings() {
-      return getStubSettingsBuilder().listTracesSettings();
+    /** Returns the builder for the settings used for calls to patchTraces. */
+    public UnaryCallSettings.Builder patchTracesSettings() {
+      return getStubSettingsBuilder().patchTracesSettings();
     }
 
     @Override
diff --git a/google-cloud-trace/src/main/java/com/google/cloud/trace/v1/package-info.java b/google-cloud-trace/src/main/java/com/google/cloud/trace/v1/package-info.java
index 961d8c4a..a8721384 100644
--- a/google-cloud-trace/src/main/java/com/google/cloud/trace/v1/package-info.java
+++ b/google-cloud-trace/src/main/java/com/google/cloud/trace/v1/package-info.java
@@ -32,8 +32,8 @@
  * 
  * try (TraceServiceClient traceServiceClient = TraceServiceClient.create()) {
  *   String projectId = "";
- *   Traces traces = Traces.newBuilder().build();
- *   traceServiceClient.patchTraces(projectId, traces);
+ *   String traceId = "";
+ *   Trace response = traceServiceClient.getTrace(projectId, traceId);
  * }
  * 
  *
diff --git a/google-cloud-trace/src/main/java/com/google/cloud/trace/v1/stub/GrpcTraceServiceStub.java b/google-cloud-trace/src/main/java/com/google/cloud/trace/v1/stub/GrpcTraceServiceStub.java index f788a394..750f0d75 100644 --- a/google-cloud-trace/src/main/java/com/google/cloud/trace/v1/stub/GrpcTraceServiceStub.java +++ b/google-cloud-trace/src/main/java/com/google/cloud/trace/v1/stub/GrpcTraceServiceStub.java @@ -49,20 +49,6 @@ @BetaApi("A restructuring of stub classes is planned, so this may break in the future") public class GrpcTraceServiceStub extends TraceServiceStub { - private static final MethodDescriptor patchTracesMethodDescriptor = - MethodDescriptor.newBuilder() - .setType(MethodDescriptor.MethodType.UNARY) - .setFullMethodName("google.devtools.cloudtrace.v1.TraceService/PatchTraces") - .setRequestMarshaller(ProtoUtils.marshaller(PatchTracesRequest.getDefaultInstance())) - .setResponseMarshaller(ProtoUtils.marshaller(Empty.getDefaultInstance())) - .build(); - private static final MethodDescriptor getTraceMethodDescriptor = - MethodDescriptor.newBuilder() - .setType(MethodDescriptor.MethodType.UNARY) - .setFullMethodName("google.devtools.cloudtrace.v1.TraceService/GetTrace") - .setRequestMarshaller(ProtoUtils.marshaller(GetTraceRequest.getDefaultInstance())) - .setResponseMarshaller(ProtoUtils.marshaller(Trace.getDefaultInstance())) - .build(); private static final MethodDescriptor listTracesMethodDescriptor = MethodDescriptor.newBuilder() @@ -71,13 +57,27 @@ public class GrpcTraceServiceStub extends TraceServiceStub { .setRequestMarshaller(ProtoUtils.marshaller(ListTracesRequest.getDefaultInstance())) .setResponseMarshaller(ProtoUtils.marshaller(ListTracesResponse.getDefaultInstance())) .build(); + private static final MethodDescriptor getTraceMethodDescriptor = + MethodDescriptor.newBuilder() + .setType(MethodDescriptor.MethodType.UNARY) + .setFullMethodName("google.devtools.cloudtrace.v1.TraceService/GetTrace") + .setRequestMarshaller(ProtoUtils.marshaller(GetTraceRequest.getDefaultInstance())) + .setResponseMarshaller(ProtoUtils.marshaller(Trace.getDefaultInstance())) + .build(); + private static final MethodDescriptor patchTracesMethodDescriptor = + MethodDescriptor.newBuilder() + .setType(MethodDescriptor.MethodType.UNARY) + .setFullMethodName("google.devtools.cloudtrace.v1.TraceService/PatchTraces") + .setRequestMarshaller(ProtoUtils.marshaller(PatchTracesRequest.getDefaultInstance())) + .setResponseMarshaller(ProtoUtils.marshaller(Empty.getDefaultInstance())) + .build(); private final BackgroundResource backgroundResources; - private final UnaryCallable patchTracesCallable; - private final UnaryCallable getTraceCallable; private final UnaryCallable listTracesCallable; private final UnaryCallable listTracesPagedCallable; + private final UnaryCallable getTraceCallable; + private final UnaryCallable patchTracesCallable; private final GrpcStubCallableFactory callableFactory; @@ -118,13 +118,13 @@ protected GrpcTraceServiceStub( throws IOException { this.callableFactory = callableFactory; - GrpcCallSettings patchTracesTransportSettings = - GrpcCallSettings.newBuilder() - .setMethodDescriptor(patchTracesMethodDescriptor) + GrpcCallSettings listTracesTransportSettings = + GrpcCallSettings.newBuilder() + .setMethodDescriptor(listTracesMethodDescriptor) .setParamsExtractor( - new RequestParamsExtractor() { + new RequestParamsExtractor() { @Override - public Map extract(PatchTracesRequest request) { + public Map extract(ListTracesRequest request) { ImmutableMap.Builder params = ImmutableMap.builder(); params.put("project_id", String.valueOf(request.getProjectId())); return params.build(); @@ -135,13 +135,13 @@ public Map extract(PatchTracesRequest request) { GrpcCallSettings.newBuilder() .setMethodDescriptor(getTraceMethodDescriptor) .build(); - GrpcCallSettings listTracesTransportSettings = - GrpcCallSettings.newBuilder() - .setMethodDescriptor(listTracesMethodDescriptor) + GrpcCallSettings patchTracesTransportSettings = + GrpcCallSettings.newBuilder() + .setMethodDescriptor(patchTracesMethodDescriptor) .setParamsExtractor( - new RequestParamsExtractor() { + new RequestParamsExtractor() { @Override - public Map extract(ListTracesRequest request) { + public Map extract(PatchTracesRequest request) { ImmutableMap.Builder params = ImmutableMap.builder(); params.put("project_id", String.valueOf(request.getProjectId())); return params.build(); @@ -149,30 +149,22 @@ public Map extract(ListTracesRequest request) { }) .build(); - this.patchTracesCallable = - callableFactory.createUnaryCallable( - patchTracesTransportSettings, settings.patchTracesSettings(), clientContext); - this.getTraceCallable = - callableFactory.createUnaryCallable( - getTraceTransportSettings, settings.getTraceSettings(), clientContext); this.listTracesCallable = callableFactory.createUnaryCallable( listTracesTransportSettings, settings.listTracesSettings(), clientContext); this.listTracesPagedCallable = callableFactory.createPagedCallable( listTracesTransportSettings, settings.listTracesSettings(), clientContext); + this.getTraceCallable = + callableFactory.createUnaryCallable( + getTraceTransportSettings, settings.getTraceSettings(), clientContext); + this.patchTracesCallable = + callableFactory.createUnaryCallable( + patchTracesTransportSettings, settings.patchTracesSettings(), clientContext); backgroundResources = new BackgroundResourceAggregation(clientContext.getBackgroundResources()); } - public UnaryCallable patchTracesCallable() { - return patchTracesCallable; - } - - public UnaryCallable getTraceCallable() { - return getTraceCallable; - } - public UnaryCallable listTracesPagedCallable() { return listTracesPagedCallable; } @@ -181,6 +173,14 @@ public UnaryCallable listTracesCallable() return listTracesCallable; } + public UnaryCallable getTraceCallable() { + return getTraceCallable; + } + + public UnaryCallable patchTracesCallable() { + return patchTracesCallable; + } + @Override public final void close() { shutdown(); diff --git a/google-cloud-trace/src/main/java/com/google/cloud/trace/v1/stub/TraceServiceStub.java b/google-cloud-trace/src/main/java/com/google/cloud/trace/v1/stub/TraceServiceStub.java index f2c11504..a05427e3 100644 --- a/google-cloud-trace/src/main/java/com/google/cloud/trace/v1/stub/TraceServiceStub.java +++ b/google-cloud-trace/src/main/java/com/google/cloud/trace/v1/stub/TraceServiceStub.java @@ -38,14 +38,6 @@ @BetaApi("A restructuring of stub classes is planned, so this may break in the future") public abstract class TraceServiceStub implements BackgroundResource { - public UnaryCallable patchTracesCallable() { - throw new UnsupportedOperationException("Not implemented: patchTracesCallable()"); - } - - public UnaryCallable getTraceCallable() { - throw new UnsupportedOperationException("Not implemented: getTraceCallable()"); - } - public UnaryCallable listTracesPagedCallable() { throw new UnsupportedOperationException("Not implemented: listTracesPagedCallable()"); } @@ -54,6 +46,14 @@ public UnaryCallable listTracesCallable() throw new UnsupportedOperationException("Not implemented: listTracesCallable()"); } + public UnaryCallable getTraceCallable() { + throw new UnsupportedOperationException("Not implemented: getTraceCallable()"); + } + + public UnaryCallable patchTracesCallable() { + throw new UnsupportedOperationException("Not implemented: patchTracesCallable()"); + } + @Override public abstract void close(); } diff --git a/google-cloud-trace/src/main/java/com/google/cloud/trace/v1/stub/TraceServiceStubSettings.java b/google-cloud-trace/src/main/java/com/google/cloud/trace/v1/stub/TraceServiceStubSettings.java index b732e16b..caad00d7 100644 --- a/google-cloud-trace/src/main/java/com/google/cloud/trace/v1/stub/TraceServiceStubSettings.java +++ b/google-cloud-trace/src/main/java/com/google/cloud/trace/v1/stub/TraceServiceStubSettings.java @@ -69,13 +69,13 @@ *

The builder of this class is recursive, so contained classes are themselves builders. When * build() is called, the tree of builders is called to create the complete settings object. * - *

For example, to set the total timeout of patchTraces to 30 seconds: + *

For example, to set the total timeout of getTrace to 30 seconds: * * 

  * 
  * TraceServiceStubSettings.Builder traceServiceSettingsBuilder =
  *     TraceServiceStubSettings.newBuilder();
- * traceServiceSettingsBuilder.patchTracesSettings().getRetrySettings().toBuilder()
+ * traceServiceSettingsBuilder.getTraceSettings().getRetrySettings().toBuilder()
  *     .setTotalTimeout(Duration.ofSeconds(30));
  * TraceServiceStubSettings traceServiceSettings = traceServiceSettingsBuilder.build();
  * 
@@ -92,14 +92,15 @@ public class TraceServiceStubSettings extends StubSettings patchTracesSettings;
-  private final UnaryCallSettings getTraceSettings;
   private final PagedCallSettings
       listTracesSettings;
+  private final UnaryCallSettings getTraceSettings;
+  private final UnaryCallSettings patchTracesSettings;
 
-  /** Returns the object with the settings used for calls to patchTraces. */
-  public UnaryCallSettings patchTracesSettings() {
-    return patchTracesSettings;
+  /** Returns the object with the settings used for calls to listTraces. */
+  public PagedCallSettings
+      listTracesSettings() {
+    return listTracesSettings;
   }
 
   /** Returns the object with the settings used for calls to getTrace. */
@@ -107,10 +108,9 @@ public UnaryCallSettings getTraceSettings() {
     return getTraceSettings;
   }
 
-  /** Returns the object with the settings used for calls to listTraces. */
-  public PagedCallSettings
-      listTracesSettings() {
-    return listTracesSettings;
+  /** Returns the object with the settings used for calls to patchTraces. */
+  public UnaryCallSettings patchTracesSettings() {
+    return patchTracesSettings;
   }
 
   @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
@@ -182,9 +182,9 @@ public Builder toBuilder() {
   protected TraceServiceStubSettings(Builder settingsBuilder) throws IOException {
     super(settingsBuilder);
 
-    patchTracesSettings = settingsBuilder.patchTracesSettings().build();
-    getTraceSettings = settingsBuilder.getTraceSettings().build();
     listTracesSettings = settingsBuilder.listTracesSettings().build();
+    getTraceSettings = settingsBuilder.getTraceSettings().build();
+    patchTracesSettings = settingsBuilder.patchTracesSettings().build();
   }
 
   private static final PagedListDescriptor
@@ -244,11 +244,11 @@ public ApiFuture getFuturePagedResponse(
   public static class Builder extends StubSettings.Builder {
     private final ImmutableList> unaryMethodSettingsBuilders;
 
-    private final UnaryCallSettings.Builder patchTracesSettings;
-    private final UnaryCallSettings.Builder getTraceSettings;
     private final PagedCallSettings.Builder<
             ListTracesRequest, ListTracesResponse, ListTracesPagedResponse>
         listTracesSettings;
+    private final UnaryCallSettings.Builder getTraceSettings;
+    private final UnaryCallSettings.Builder patchTracesSettings;
 
     private static final ImmutableMap>
         RETRYABLE_CODE_DEFINITIONS;
@@ -273,12 +273,12 @@ public static class Builder extends StubSettings.Builder>of(
-              patchTracesSettings, getTraceSettings, listTracesSettings);
+              listTracesSettings, getTraceSettings, patchTracesSettings);
 
       initDefaults(this);
     }
@@ -316,7 +316,7 @@ private static Builder createDefault() {
     private static Builder initDefaults(Builder builder) {
 
       builder
-          .patchTracesSettings()
+          .listTracesSettings()
           .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("idempotent"))
           .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("default"));
 
@@ -326,8 +326,8 @@ private static Builder initDefaults(Builder builder) {
           .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("default"));
 
       builder
-          .listTracesSettings()
-          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("idempotent"))
+          .patchTracesSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("non_idempotent"))
           .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("default"));
 
       return builder;
@@ -336,13 +336,13 @@ private static Builder initDefaults(Builder builder) {
     protected Builder(TraceServiceStubSettings settings) {
       super(settings);
 
-      patchTracesSettings = settings.patchTracesSettings.toBuilder();
-      getTraceSettings = settings.getTraceSettings.toBuilder();
       listTracesSettings = settings.listTracesSettings.toBuilder();
+      getTraceSettings = settings.getTraceSettings.toBuilder();
+      patchTracesSettings = settings.patchTracesSettings.toBuilder();
 
       unaryMethodSettingsBuilders =
           ImmutableList.>of(
-              patchTracesSettings, getTraceSettings, listTracesSettings);
+              listTracesSettings, getTraceSettings, patchTracesSettings);
     }
 
     // NEXT_MAJOR_VER: remove 'throws Exception'
@@ -361,9 +361,10 @@ public Builder applyToAllUnaryMethods(
       return unaryMethodSettingsBuilders;
     }
 
-    /** Returns the builder for the settings used for calls to patchTraces. */
-    public UnaryCallSettings.Builder patchTracesSettings() {
-      return patchTracesSettings;
+    /** Returns the builder for the settings used for calls to listTraces. */
+    public PagedCallSettings.Builder
+        listTracesSettings() {
+      return listTracesSettings;
     }
 
     /** Returns the builder for the settings used for calls to getTrace. */
@@ -371,10 +372,9 @@ public UnaryCallSettings.Builder getTraceSettings() {
       return getTraceSettings;
     }
 
-    /** Returns the builder for the settings used for calls to listTraces. */
-    public PagedCallSettings.Builder
-        listTracesSettings() {
-      return listTracesSettings;
+    /** Returns the builder for the settings used for calls to patchTraces. */
+    public UnaryCallSettings.Builder patchTracesSettings() {
+      return patchTracesSettings;
     }
 
     @Override
diff --git a/google-cloud-trace/src/main/java/com/google/cloud/trace/v2/TraceServiceClient.java b/google-cloud-trace/src/main/java/com/google/cloud/trace/v2/TraceServiceClient.java
index f5426fba..cf3fabca 100644
--- a/google-cloud-trace/src/main/java/com/google/cloud/trace/v2/TraceServiceClient.java
+++ b/google-cloud-trace/src/main/java/com/google/cloud/trace/v2/TraceServiceClient.java
@@ -168,8 +168,8 @@ public TraceServiceStub getStub() {
    *
    * @param name Required. The name of the project where the spans belong. The format is
    *     `projects/[PROJECT_ID]`.
-   * @param spans A list of new spans. The span names must not match existing spans, or the results
-   *     are undefined.
+   * @param spans Required. A list of new spans. The span names must not match existing spans, or
+   *     the results are undefined.
    * @throws com.google.api.gax.rpc.ApiException if the remote call fails
    */
   public final void batchWriteSpans(ProjectName name, List spans) {
@@ -198,8 +198,8 @@ public final void batchWriteSpans(ProjectName name, List spans) {
    *
    * @param name Required. The name of the project where the spans belong. The format is
    *     `projects/[PROJECT_ID]`.
-   * @param spans A list of new spans. The span names must not match existing spans, or the results
-   *     are undefined.
+   * @param spans Required. A list of new spans. The span names must not match existing spans, or
+   *     the results are undefined.
    * @throws com.google.api.gax.rpc.ApiException if the remote call fails
    */
   public final void batchWriteSpans(String name, List spans) {
diff --git a/google-cloud-trace/src/test/java/com/google/cloud/trace/v1/TraceServiceClientTest.java b/google-cloud-trace/src/test/java/com/google/cloud/trace/v1/TraceServiceClientTest.java
index de0ce912..61f7be87 100644
--- a/google-cloud-trace/src/test/java/com/google/cloud/trace/v1/TraceServiceClientTest.java
+++ b/google-cloud-trace/src/test/java/com/google/cloud/trace/v1/TraceServiceClientTest.java
@@ -84,21 +84,30 @@ public void tearDown() throws Exception {
 
   @Test
   @SuppressWarnings("all")
-  public void patchTracesTest() {
-    Empty expectedResponse = Empty.newBuilder().build();
+  public void listTracesTest() {
+    String nextPageToken = "";
+    Trace tracesElement = Trace.newBuilder().build();
+    List traces = Arrays.asList(tracesElement);
+    ListTracesResponse expectedResponse =
+        ListTracesResponse.newBuilder()
+            .setNextPageToken(nextPageToken)
+            .addAllTraces(traces)
+            .build();
     mockTraceService.addResponse(expectedResponse);
 
     String projectId = "projectId-1969970175";
-    Traces traces = Traces.newBuilder().build();
 
-    client.patchTraces(projectId, traces);
+    ListTracesPagedResponse pagedListResponse = client.listTraces(projectId);
+
+    List resources = Lists.newArrayList(pagedListResponse.iterateAll());
+    Assert.assertEquals(1, resources.size());
+    Assert.assertEquals(expectedResponse.getTracesList().get(0), resources.get(0));
 
     List actualRequests = mockTraceService.getRequests();
     Assert.assertEquals(1, actualRequests.size());
-    PatchTracesRequest actualRequest = (PatchTracesRequest) actualRequests.get(0);
+    ListTracesRequest actualRequest = (ListTracesRequest) actualRequests.get(0);
 
     Assert.assertEquals(projectId, actualRequest.getProjectId());
-    Assert.assertEquals(traces, actualRequest.getTraces());
     Assert.assertTrue(
         channelProvider.isHeaderSent(
             ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
@@ -107,15 +116,14 @@ public void patchTracesTest() {
 
   @Test
   @SuppressWarnings("all")
-  public void patchTracesExceptionTest() throws Exception {
+  public void listTracesExceptionTest() throws Exception {
     StatusRuntimeException exception = new StatusRuntimeException(Status.INVALID_ARGUMENT);
     mockTraceService.addException(exception);
 
     try {
       String projectId = "projectId-1969970175";
-      Traces traces = Traces.newBuilder().build();
 
-      client.patchTraces(projectId, traces);
+      client.listTraces(projectId);
       Assert.fail("No exception raised");
     } catch (InvalidArgumentException e) {
       // Expected exception
@@ -168,30 +176,21 @@ public void getTraceExceptionTest() throws Exception {
 
   @Test
   @SuppressWarnings("all")
-  public void listTracesTest() {
-    String nextPageToken = "";
-    Trace tracesElement = Trace.newBuilder().build();
-    List traces = Arrays.asList(tracesElement);
-    ListTracesResponse expectedResponse =
-        ListTracesResponse.newBuilder()
-            .setNextPageToken(nextPageToken)
-            .addAllTraces(traces)
-            .build();
+  public void patchTracesTest() {
+    Empty expectedResponse = Empty.newBuilder().build();
     mockTraceService.addResponse(expectedResponse);
 
     String projectId = "projectId-1969970175";
+    Traces traces = Traces.newBuilder().build();
 
-    ListTracesPagedResponse pagedListResponse = client.listTraces(projectId);
-
-    List resources = Lists.newArrayList(pagedListResponse.iterateAll());
-    Assert.assertEquals(1, resources.size());
-    Assert.assertEquals(expectedResponse.getTracesList().get(0), resources.get(0));
+    client.patchTraces(projectId, traces);
 
     List actualRequests = mockTraceService.getRequests();
     Assert.assertEquals(1, actualRequests.size());
-    ListTracesRequest actualRequest = (ListTracesRequest) actualRequests.get(0);
+    PatchTracesRequest actualRequest = (PatchTracesRequest) actualRequests.get(0);
 
     Assert.assertEquals(projectId, actualRequest.getProjectId());
+    Assert.assertEquals(traces, actualRequest.getTraces());
     Assert.assertTrue(
         channelProvider.isHeaderSent(
             ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
@@ -200,14 +199,15 @@ public void listTracesTest() {
 
   @Test
   @SuppressWarnings("all")
-  public void listTracesExceptionTest() throws Exception {
+  public void patchTracesExceptionTest() throws Exception {
     StatusRuntimeException exception = new StatusRuntimeException(Status.INVALID_ARGUMENT);
     mockTraceService.addException(exception);
 
     try {
       String projectId = "projectId-1969970175";
+      Traces traces = Traces.newBuilder().build();
 
-      client.listTraces(projectId);
+      client.patchTraces(projectId, traces);
       Assert.fail("No exception raised");
     } catch (InvalidArgumentException e) {
       // Expected exception
diff --git a/proto-google-cloud-trace-v1/src/main/java/com/google/devtools/cloudtrace/v1/GetTraceRequest.java b/proto-google-cloud-trace-v1/src/main/java/com/google/devtools/cloudtrace/v1/GetTraceRequest.java
index 32f4c2f5..e4a9da25 100644
--- a/proto-google-cloud-trace-v1/src/main/java/com/google/devtools/cloudtrace/v1/GetTraceRequest.java
+++ b/proto-google-cloud-trace-v1/src/main/java/com/google/devtools/cloudtrace/v1/GetTraceRequest.java
@@ -120,10 +120,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
    *
    *
    * 
-   * ID of the Cloud project where the trace data is stored.
+   * Required. ID of the Cloud project where the trace data is stored.
    * 

    *
-   * string project_id = 1;
+   * string project_id = 1 [(.google.api.field_behavior) = REQUIRED];
    */
   public java.lang.String getProjectId() {
     java.lang.Object ref = projectId_;
@@ -140,10 +140,10 @@ public java.lang.String getProjectId() {
    *
    *
    * 
-   * ID of the Cloud project where the trace data is stored.
+   * Required. ID of the Cloud project where the trace data is stored.
    * 

    *
-   * string project_id = 1;
+   * string project_id = 1 [(.google.api.field_behavior) = REQUIRED];
    */
   public com.google.protobuf.ByteString getProjectIdBytes() {
     java.lang.Object ref = projectId_;
@@ -163,10 +163,10 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
    *
    *
    * 
-   * ID of the trace to return.
+   * Required. ID of the trace to return.
    * 

    *
-   * string trace_id = 2;
+   * string trace_id = 2 [(.google.api.field_behavior) = REQUIRED];
    */
   public java.lang.String getTraceId() {
     java.lang.Object ref = traceId_;
@@ -183,10 +183,10 @@ public java.lang.String getTraceId() {
    *
    *
    * 
-   * ID of the trace to return.
+   * Required. ID of the trace to return.
    * 

    *
-   * string trace_id = 2;
+   * string trace_id = 2 [(.google.api.field_behavior) = REQUIRED];
    */
   public com.google.protobuf.ByteString getTraceIdBytes() {
     java.lang.Object ref = traceId_;
@@ -539,10 +539,10 @@ public Builder mergeFrom(
      *
      *
      * 
-     * ID of the Cloud project where the trace data is stored.
+     * Required. ID of the Cloud project where the trace data is stored.
      * 

      *
-     * string project_id = 1;
+     * string project_id = 1 [(.google.api.field_behavior) = REQUIRED];
      */
     public java.lang.String getProjectId() {
       java.lang.Object ref = projectId_;
@@ -559,10 +559,10 @@ public java.lang.String getProjectId() {
      *
      *
      * 
-     * ID of the Cloud project where the trace data is stored.
+     * Required. ID of the Cloud project where the trace data is stored.
      * 

      *
-     * string project_id = 1;
+     * string project_id = 1 [(.google.api.field_behavior) = REQUIRED];
      */
     public com.google.protobuf.ByteString getProjectIdBytes() {
       java.lang.Object ref = projectId_;
@@ -579,10 +579,10 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
      *
      *
      * 
-     * ID of the Cloud project where the trace data is stored.
+     * Required. ID of the Cloud project where the trace data is stored.
      * 

      *
-     * string project_id = 1;
+     * string project_id = 1 [(.google.api.field_behavior) = REQUIRED];
      */
     public Builder setProjectId(java.lang.String value) {
       if (value == null) {
@@ -597,10 +597,10 @@ public Builder setProjectId(java.lang.String value) {
      *
      *
      * 
-     * ID of the Cloud project where the trace data is stored.
+     * Required. ID of the Cloud project where the trace data is stored.
      * 

      *
-     * string project_id = 1;
+     * string project_id = 1 [(.google.api.field_behavior) = REQUIRED];
      */
     public Builder clearProjectId() {
 
@@ -612,10 +612,10 @@ public Builder clearProjectId() {
      *
      *
      * 
-     * ID of the Cloud project where the trace data is stored.
+     * Required. ID of the Cloud project where the trace data is stored.
      * 

      *
-     * string project_id = 1;
+     * string project_id = 1 [(.google.api.field_behavior) = REQUIRED];
      */
     public Builder setProjectIdBytes(com.google.protobuf.ByteString value) {
       if (value == null) {
@@ -633,10 +633,10 @@ public Builder setProjectIdBytes(com.google.protobuf.ByteString value) {
      *
      *
      * 
-     * ID of the trace to return.
+     * Required. ID of the trace to return.
      * 

      *
-     * string trace_id = 2;
+     * string trace_id = 2 [(.google.api.field_behavior) = REQUIRED];
      */
     public java.lang.String getTraceId() {
       java.lang.Object ref = traceId_;
@@ -653,10 +653,10 @@ public java.lang.String getTraceId() {
      *
      *
      * 
-     * ID of the trace to return.
+     * Required. ID of the trace to return.
      * 

      *
-     * string trace_id = 2;
+     * string trace_id = 2 [(.google.api.field_behavior) = REQUIRED];
      */
     public com.google.protobuf.ByteString getTraceIdBytes() {
       java.lang.Object ref = traceId_;
@@ -673,10 +673,10 @@ public com.google.protobuf.ByteString getTraceIdBytes() {
      *
      *
      * 
-     * ID of the trace to return.
+     * Required. ID of the trace to return.
      * 

      *
-     * string trace_id = 2;
+     * string trace_id = 2 [(.google.api.field_behavior) = REQUIRED];
      */
     public Builder setTraceId(java.lang.String value) {
       if (value == null) {
@@ -691,10 +691,10 @@ public Builder setTraceId(java.lang.String value) {
      *
      *
      * 
-     * ID of the trace to return.
+     * Required. ID of the trace to return.
      * 

      *
-     * string trace_id = 2;
+     * string trace_id = 2 [(.google.api.field_behavior) = REQUIRED];
      */
     public Builder clearTraceId() {
 
@@ -706,10 +706,10 @@ public Builder clearTraceId() {
      *
      *
      * 
-     * ID of the trace to return.
+     * Required. ID of the trace to return.
      * 

      *
-     * string trace_id = 2;
+     * string trace_id = 2 [(.google.api.field_behavior) = REQUIRED];
      */
     public Builder setTraceIdBytes(com.google.protobuf.ByteString value) {
       if (value == null) {
diff --git a/proto-google-cloud-trace-v1/src/main/java/com/google/devtools/cloudtrace/v1/GetTraceRequestOrBuilder.java b/proto-google-cloud-trace-v1/src/main/java/com/google/devtools/cloudtrace/v1/GetTraceRequestOrBuilder.java
index e434bbb7..4aae00cc 100644
--- a/proto-google-cloud-trace-v1/src/main/java/com/google/devtools/cloudtrace/v1/GetTraceRequestOrBuilder.java
+++ b/proto-google-cloud-trace-v1/src/main/java/com/google/devtools/cloudtrace/v1/GetTraceRequestOrBuilder.java
@@ -27,20 +27,20 @@ public interface GetTraceRequestOrBuilder
    *
    *
    * 
-   * ID of the Cloud project where the trace data is stored.
+   * Required. ID of the Cloud project where the trace data is stored.
    * 

    *
-   * string project_id = 1;
+   * string project_id = 1 [(.google.api.field_behavior) = REQUIRED];
    */
   java.lang.String getProjectId();
   /**
    *
    *
    * 
-   * ID of the Cloud project where the trace data is stored.
+   * Required. ID of the Cloud project where the trace data is stored.
    * 

    *
-   * string project_id = 1;
+   * string project_id = 1 [(.google.api.field_behavior) = REQUIRED];
    */
   com.google.protobuf.ByteString getProjectIdBytes();
 
@@ -48,20 +48,20 @@ public interface GetTraceRequestOrBuilder
    *
    *
    * 
-   * ID of the trace to return.
+   * Required. ID of the trace to return.
    * 

    *
-   * string trace_id = 2;
+   * string trace_id = 2 [(.google.api.field_behavior) = REQUIRED];
    */
   java.lang.String getTraceId();
   /**
    *
    *
    * 
-   * ID of the trace to return.
+   * Required. ID of the trace to return.
    * 

    *
-   * string trace_id = 2;
+   * string trace_id = 2 [(.google.api.field_behavior) = REQUIRED];
    */
   com.google.protobuf.ByteString getTraceIdBytes();
 }
diff --git a/proto-google-cloud-trace-v1/src/main/java/com/google/devtools/cloudtrace/v1/ListTracesRequest.java b/proto-google-cloud-trace-v1/src/main/java/com/google/devtools/cloudtrace/v1/ListTracesRequest.java
index 9d5a800b..92f32db5 100644
--- a/proto-google-cloud-trace-v1/src/main/java/com/google/devtools/cloudtrace/v1/ListTracesRequest.java
+++ b/proto-google-cloud-trace-v1/src/main/java/com/google/devtools/cloudtrace/v1/ListTracesRequest.java
@@ -357,10 +357,10 @@ private ViewType(int value) {
    *
    *
    * 
-   * ID of the Cloud project where the trace data is stored.
+   * Required. ID of the Cloud project where the trace data is stored.
    * 

    *
-   * string project_id = 1;
+   * string project_id = 1 [(.google.api.field_behavior) = REQUIRED];
    */
   public java.lang.String getProjectId() {
     java.lang.Object ref = projectId_;
@@ -377,10 +377,10 @@ public java.lang.String getProjectId() {
    *
    *
    * 
-   * ID of the Cloud project where the trace data is stored.
+   * Required. ID of the Cloud project where the trace data is stored.
    * 

    *
-   * string project_id = 1;
+   * string project_id = 1 [(.google.api.field_behavior) = REQUIRED];
    */
   public com.google.protobuf.ByteString getProjectIdBytes() {
     java.lang.Object ref = projectId_;
@@ -400,11 +400,13 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
    *
    *
    * 
-   * Type of data returned for traces in the list. Optional. Default is
+   * Optional. Type of data returned for traces in the list. Default is
    * `MINIMAL`.
    * 

    *
-   * .google.devtools.cloudtrace.v1.ListTracesRequest.ViewType view = 2;
+   * 
+   * .google.devtools.cloudtrace.v1.ListTracesRequest.ViewType view = 2 [(.google.api.field_behavior) = OPTIONAL];
+   * 
    */
   public int getViewValue() {
     return view_;
@@ -413,11 +415,13 @@ public int getViewValue() {
    *
    *
    * 
-   * Type of data returned for traces in the list. Optional. Default is
+   * Optional. Type of data returned for traces in the list. Default is
    * `MINIMAL`.
    * 

    *
-   * .google.devtools.cloudtrace.v1.ListTracesRequest.ViewType view = 2;
+   * 
+   * .google.devtools.cloudtrace.v1.ListTracesRequest.ViewType view = 2 [(.google.api.field_behavior) = OPTIONAL];
+   * 
    */
   public com.google.devtools.cloudtrace.v1.ListTracesRequest.ViewType getView() {
     @SuppressWarnings("deprecation")
@@ -434,12 +438,12 @@ public com.google.devtools.cloudtrace.v1.ListTracesRequest.ViewType getView() {
    *
    *
    * 
-   * Maximum number of traces to return. If not specified or <= 0, the
+   * Optional. Maximum number of traces to return. If not specified or <= 0, the
    * implementation selects a reasonable value.  The implementation may
-   * return fewer traces than the requested page size. Optional.
+   * return fewer traces than the requested page size.
    * 

    *
-   * int32 page_size = 3;
+   * int32 page_size = 3 [(.google.api.field_behavior) = OPTIONAL];
    */
   public int getPageSize() {
     return pageSize_;
@@ -452,7 +456,7 @@ public int getPageSize() {
    *
    * 
    * Token identifying the page of results to return. If provided, use the
-   * value of the `next_page_token` field from a previous request. Optional.
+   * value of the `next_page_token` field from a previous request.
    * 

    *
    * string page_token = 4;
@@ -473,7 +477,7 @@ public java.lang.String getPageToken() {
    *
    * 
    * Token identifying the page of results to return. If provided, use the
-   * value of the `next_page_token` field from a previous request. Optional.
+   * value of the `next_page_token` field from a previous request.
    * 

    *
    * string page_token = 4;
@@ -580,7 +584,7 @@ public com.google.protobuf.TimestampOrBuilder getEndTimeOrBuilder() {
    *
    *
    * 
-   * An optional filter against labels for the request.
+   * Optional. A filter against labels for the request.
    * By default, searches use prefix matching. To specify exact match, prepend
    * a plus symbol (`+`) to the search term.
    * Multiple terms are ANDed. Syntax:
@@ -610,7 +614,7 @@ public com.google.protobuf.TimestampOrBuilder getEndTimeOrBuilder() {
    * *   `url:VALUE`: Equivalent to `/http/url:VALUE`.
    * 

    *
-   * string filter = 7;
+   * string filter = 7 [(.google.api.field_behavior) = OPTIONAL];
    */
   public java.lang.String getFilter() {
     java.lang.Object ref = filter_;
@@ -627,7 +631,7 @@ public java.lang.String getFilter() {
    *
    *
    * 
-   * An optional filter against labels for the request.
+   * Optional. A filter against labels for the request.
    * By default, searches use prefix matching. To specify exact match, prepend
    * a plus symbol (`+`) to the search term.
    * Multiple terms are ANDed. Syntax:
@@ -657,7 +661,7 @@ public java.lang.String getFilter() {
    * *   `url:VALUE`: Equivalent to `/http/url:VALUE`.
    * 

    *
-   * string filter = 7;
+   * string filter = 7 [(.google.api.field_behavior) = OPTIONAL];
    */
   public com.google.protobuf.ByteString getFilterBytes() {
     java.lang.Object ref = filter_;
@@ -677,7 +681,7 @@ public com.google.protobuf.ByteString getFilterBytes() {
    *
    *
    * 
-   * Field used to sort the returned traces. Optional.
+   * Optional. Field used to sort the returned traces.
    * Can be one of the following:
    * *   `trace_id`
    * *   `name` (`name` field of root span in the trace)
@@ -689,7 +693,7 @@ public com.google.protobuf.ByteString getFilterBytes() {
    * Only one sort field is permitted.
    * 

    *
-   * string order_by = 8;
+   * string order_by = 8 [(.google.api.field_behavior) = OPTIONAL];
    */
   public java.lang.String getOrderBy() {
     java.lang.Object ref = orderBy_;
@@ -706,7 +710,7 @@ public java.lang.String getOrderBy() {
    *
    *
    * 
-   * Field used to sort the returned traces. Optional.
+   * Optional. Field used to sort the returned traces.
    * Can be one of the following:
    * *   `trace_id`
    * *   `name` (`name` field of root span in the trace)
@@ -718,7 +722,7 @@ public java.lang.String getOrderBy() {
    * Only one sort field is permitted.
    * 

    *
-   * string order_by = 8;
+   * string order_by = 8 [(.google.api.field_behavior) = OPTIONAL];
    */
   public com.google.protobuf.ByteString getOrderByBytes() {
     java.lang.Object ref = orderBy_;
@@ -1194,10 +1198,10 @@ public Builder mergeFrom(
      *
      *
      * 
-     * ID of the Cloud project where the trace data is stored.
+     * Required. ID of the Cloud project where the trace data is stored.
      * 

      *
-     * string project_id = 1;
+     * string project_id = 1 [(.google.api.field_behavior) = REQUIRED];
      */
     public java.lang.String getProjectId() {
       java.lang.Object ref = projectId_;
@@ -1214,10 +1218,10 @@ public java.lang.String getProjectId() {
      *
      *
      * 
-     * ID of the Cloud project where the trace data is stored.
+     * Required. ID of the Cloud project where the trace data is stored.
      * 

      *
-     * string project_id = 1;
+     * string project_id = 1 [(.google.api.field_behavior) = REQUIRED];
      */
     public com.google.protobuf.ByteString getProjectIdBytes() {
       java.lang.Object ref = projectId_;
@@ -1234,10 +1238,10 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
      *
      *
      * 
-     * ID of the Cloud project where the trace data is stored.
+     * Required. ID of the Cloud project where the trace data is stored.
      * 

      *
-     * string project_id = 1;
+     * string project_id = 1 [(.google.api.field_behavior) = REQUIRED];
      */
     public Builder setProjectId(java.lang.String value) {
       if (value == null) {
@@ -1252,10 +1256,10 @@ public Builder setProjectId(java.lang.String value) {
      *
      *
      * 
-     * ID of the Cloud project where the trace data is stored.
+     * Required. ID of the Cloud project where the trace data is stored.
      * 

      *
-     * string project_id = 1;
+     * string project_id = 1 [(.google.api.field_behavior) = REQUIRED];
      */
     public Builder clearProjectId() {
 
@@ -1267,10 +1271,10 @@ public Builder clearProjectId() {
      *
      *
      * 
-     * ID of the Cloud project where the trace data is stored.
+     * Required. ID of the Cloud project where the trace data is stored.
      * 

      *
-     * string project_id = 1;
+     * string project_id = 1 [(.google.api.field_behavior) = REQUIRED];
      */
     public Builder setProjectIdBytes(com.google.protobuf.ByteString value) {
       if (value == null) {
@@ -1288,11 +1292,13 @@ public Builder setProjectIdBytes(com.google.protobuf.ByteString value) {
      *
      *
      * 
-     * Type of data returned for traces in the list. Optional. Default is
+     * Optional. Type of data returned for traces in the list. Default is
      * `MINIMAL`.
      * 

      *
-     * .google.devtools.cloudtrace.v1.ListTracesRequest.ViewType view = 2;
+     * 
+     * .google.devtools.cloudtrace.v1.ListTracesRequest.ViewType view = 2 [(.google.api.field_behavior) = OPTIONAL];
+     * 
      */
     public int getViewValue() {
       return view_;
@@ -1301,11 +1307,13 @@ public int getViewValue() {
      *
      *
      * 
-     * Type of data returned for traces in the list. Optional. Default is
+     * Optional. Type of data returned for traces in the list. Default is
      * `MINIMAL`.
      * 

      *
-     * .google.devtools.cloudtrace.v1.ListTracesRequest.ViewType view = 2;
+     * 
+     * .google.devtools.cloudtrace.v1.ListTracesRequest.ViewType view = 2 [(.google.api.field_behavior) = OPTIONAL];
+     * 
      */
     public Builder setViewValue(int value) {
       view_ = value;
@@ -1316,11 +1324,13 @@ public Builder setViewValue(int value) {
      *
      *
      * 
-     * Type of data returned for traces in the list. Optional. Default is
+     * Optional. Type of data returned for traces in the list. Default is
      * `MINIMAL`.
      * 

      *
-     * .google.devtools.cloudtrace.v1.ListTracesRequest.ViewType view = 2;
+     * 
+     * .google.devtools.cloudtrace.v1.ListTracesRequest.ViewType view = 2 [(.google.api.field_behavior) = OPTIONAL];
+     * 
      */
     public com.google.devtools.cloudtrace.v1.ListTracesRequest.ViewType getView() {
       @SuppressWarnings("deprecation")
@@ -1334,11 +1344,13 @@ public com.google.devtools.cloudtrace.v1.ListTracesRequest.ViewType getView() {
      *
      *
      * 
-     * Type of data returned for traces in the list. Optional. Default is
+     * Optional. Type of data returned for traces in the list. Default is
      * `MINIMAL`.
      * 

      *
-     * .google.devtools.cloudtrace.v1.ListTracesRequest.ViewType view = 2;
+     * 
+     * .google.devtools.cloudtrace.v1.ListTracesRequest.ViewType view = 2 [(.google.api.field_behavior) = OPTIONAL];
+     * 
      */
     public Builder setView(com.google.devtools.cloudtrace.v1.ListTracesRequest.ViewType value) {
       if (value == null) {
@@ -1353,11 +1365,13 @@ public Builder setView(com.google.devtools.cloudtrace.v1.ListTracesRequest.ViewT
      *
      *
      * 
-     * Type of data returned for traces in the list. Optional. Default is
+     * Optional. Type of data returned for traces in the list. Default is
      * `MINIMAL`.
      * 

      *
-     * .google.devtools.cloudtrace.v1.ListTracesRequest.ViewType view = 2;
+     * 
+     * .google.devtools.cloudtrace.v1.ListTracesRequest.ViewType view = 2 [(.google.api.field_behavior) = OPTIONAL];
+     * 
      */
     public Builder clearView() {
 
@@ -1371,12 +1385,12 @@ public Builder clearView() {
      *
      *
      * 
-     * Maximum number of traces to return. If not specified or <= 0, the
+     * Optional. Maximum number of traces to return. If not specified or <= 0, the
      * implementation selects a reasonable value.  The implementation may
-     * return fewer traces than the requested page size. Optional.
+     * return fewer traces than the requested page size.
      * 

      *
-     * int32 page_size = 3;
+     * int32 page_size = 3 [(.google.api.field_behavior) = OPTIONAL];
      */
     public int getPageSize() {
       return pageSize_;
@@ -1385,12 +1399,12 @@ public int getPageSize() {
      *
      *
      * 
-     * Maximum number of traces to return. If not specified or <= 0, the
+     * Optional. Maximum number of traces to return. If not specified or <= 0, the
      * implementation selects a reasonable value.  The implementation may
-     * return fewer traces than the requested page size. Optional.
+     * return fewer traces than the requested page size.
      * 

      *
-     * int32 page_size = 3;
+     * int32 page_size = 3 [(.google.api.field_behavior) = OPTIONAL];
      */
     public Builder setPageSize(int value) {
 
@@ -1402,12 +1416,12 @@ public Builder setPageSize(int value) {
      *
      *
      * 
-     * Maximum number of traces to return. If not specified or <= 0, the
+     * Optional. Maximum number of traces to return. If not specified or <= 0, the
      * implementation selects a reasonable value.  The implementation may
-     * return fewer traces than the requested page size. Optional.
+     * return fewer traces than the requested page size.
      * 

      *
-     * int32 page_size = 3;
+     * int32 page_size = 3 [(.google.api.field_behavior) = OPTIONAL];
      */
     public Builder clearPageSize() {
 
@@ -1422,7 +1436,7 @@ public Builder clearPageSize() {
      *
      * 
      * Token identifying the page of results to return. If provided, use the
-     * value of the `next_page_token` field from a previous request. Optional.
+     * value of the `next_page_token` field from a previous request.
      * 

      *
      * string page_token = 4;
@@ -1443,7 +1457,7 @@ public java.lang.String getPageToken() {
      *
      * 
      * Token identifying the page of results to return. If provided, use the
-     * value of the `next_page_token` field from a previous request. Optional.
+     * value of the `next_page_token` field from a previous request.
      * 

      *
      * string page_token = 4;
@@ -1464,7 +1478,7 @@ public com.google.protobuf.ByteString getPageTokenBytes() {
      *
      * 
      * Token identifying the page of results to return. If provided, use the
-     * value of the `next_page_token` field from a previous request. Optional.
+     * value of the `next_page_token` field from a previous request.
      * 

      *
      * string page_token = 4;
@@ -1483,7 +1497,7 @@ public Builder setPageToken(java.lang.String value) {
      *
      * 
      * Token identifying the page of results to return. If provided, use the
-     * value of the `next_page_token` field from a previous request. Optional.
+     * value of the `next_page_token` field from a previous request.
      * 

      *
      * string page_token = 4;
@@ -1499,7 +1513,7 @@ public Builder clearPageToken() {
      *
      * 
      * Token identifying the page of results to return. If provided, use the
-     * value of the `next_page_token` field from a previous request. Optional.
+     * value of the `next_page_token` field from a previous request.
      * 

      *
      * string page_token = 4;
@@ -1888,7 +1902,7 @@ public com.google.protobuf.TimestampOrBuilder getEndTimeOrBuilder() {
      *
      *
      * 
-     * An optional filter against labels for the request.
+     * Optional. A filter against labels for the request.
      * By default, searches use prefix matching. To specify exact match, prepend
      * a plus symbol (`+`) to the search term.
      * Multiple terms are ANDed. Syntax:
@@ -1918,7 +1932,7 @@ public com.google.protobuf.TimestampOrBuilder getEndTimeOrBuilder() {
      * *   `url:VALUE`: Equivalent to `/http/url:VALUE`.
      * 

      *
-     * string filter = 7;
+     * string filter = 7 [(.google.api.field_behavior) = OPTIONAL];
      */
     public java.lang.String getFilter() {
       java.lang.Object ref = filter_;
@@ -1935,7 +1949,7 @@ public java.lang.String getFilter() {
      *
      *
      * 
-     * An optional filter against labels for the request.
+     * Optional. A filter against labels for the request.
      * By default, searches use prefix matching. To specify exact match, prepend
      * a plus symbol (`+`) to the search term.
      * Multiple terms are ANDed. Syntax:
@@ -1965,7 +1979,7 @@ public java.lang.String getFilter() {
      * *   `url:VALUE`: Equivalent to `/http/url:VALUE`.
      * 

      *
-     * string filter = 7;
+     * string filter = 7 [(.google.api.field_behavior) = OPTIONAL];
      */
     public com.google.protobuf.ByteString getFilterBytes() {
       java.lang.Object ref = filter_;
@@ -1982,7 +1996,7 @@ public com.google.protobuf.ByteString getFilterBytes() {
      *
      *
      * 
-     * An optional filter against labels for the request.
+     * Optional. A filter against labels for the request.
      * By default, searches use prefix matching. To specify exact match, prepend
      * a plus symbol (`+`) to the search term.
      * Multiple terms are ANDed. Syntax:
@@ -2012,7 +2026,7 @@ public com.google.protobuf.ByteString getFilterBytes() {
      * *   `url:VALUE`: Equivalent to `/http/url:VALUE`.
      * 

      *
-     * string filter = 7;
+     * string filter = 7 [(.google.api.field_behavior) = OPTIONAL];
      */
     public Builder setFilter(java.lang.String value) {
       if (value == null) {
@@ -2027,7 +2041,7 @@ public Builder setFilter(java.lang.String value) {
      *
      *
      * 
-     * An optional filter against labels for the request.
+     * Optional. A filter against labels for the request.
      * By default, searches use prefix matching. To specify exact match, prepend
      * a plus symbol (`+`) to the search term.
      * Multiple terms are ANDed. Syntax:
@@ -2057,7 +2071,7 @@ public Builder setFilter(java.lang.String value) {
      * *   `url:VALUE`: Equivalent to `/http/url:VALUE`.
      * 

      *
-     * string filter = 7;
+     * string filter = 7 [(.google.api.field_behavior) = OPTIONAL];
      */
     public Builder clearFilter() {
 
@@ -2069,7 +2083,7 @@ public Builder clearFilter() {
      *
      *
      * 
-     * An optional filter against labels for the request.
+     * Optional. A filter against labels for the request.
      * By default, searches use prefix matching. To specify exact match, prepend
      * a plus symbol (`+`) to the search term.
      * Multiple terms are ANDed. Syntax:
@@ -2099,7 +2113,7 @@ public Builder clearFilter() {
      * *   `url:VALUE`: Equivalent to `/http/url:VALUE`.
      * 

      *
-     * string filter = 7;
+     * string filter = 7 [(.google.api.field_behavior) = OPTIONAL];
      */
     public Builder setFilterBytes(com.google.protobuf.ByteString value) {
       if (value == null) {
@@ -2117,7 +2131,7 @@ public Builder setFilterBytes(com.google.protobuf.ByteString value) {
      *
      *
      * 
-     * Field used to sort the returned traces. Optional.
+     * Optional. Field used to sort the returned traces.
      * Can be one of the following:
      * *   `trace_id`
      * *   `name` (`name` field of root span in the trace)
@@ -2129,7 +2143,7 @@ public Builder setFilterBytes(com.google.protobuf.ByteString value) {
      * Only one sort field is permitted.
      * 

      *
-     * string order_by = 8;
+     * string order_by = 8 [(.google.api.field_behavior) = OPTIONAL];
      */
     public java.lang.String getOrderBy() {
       java.lang.Object ref = orderBy_;
@@ -2146,7 +2160,7 @@ public java.lang.String getOrderBy() {
      *
      *
      * 
-     * Field used to sort the returned traces. Optional.
+     * Optional. Field used to sort the returned traces.
      * Can be one of the following:
      * *   `trace_id`
      * *   `name` (`name` field of root span in the trace)
@@ -2158,7 +2172,7 @@ public java.lang.String getOrderBy() {
      * Only one sort field is permitted.
      * 

      *
-     * string order_by = 8;
+     * string order_by = 8 [(.google.api.field_behavior) = OPTIONAL];
      */
     public com.google.protobuf.ByteString getOrderByBytes() {
       java.lang.Object ref = orderBy_;
@@ -2175,7 +2189,7 @@ public com.google.protobuf.ByteString getOrderByBytes() {
      *
      *
      * 
-     * Field used to sort the returned traces. Optional.
+     * Optional. Field used to sort the returned traces.
      * Can be one of the following:
      * *   `trace_id`
      * *   `name` (`name` field of root span in the trace)
@@ -2187,7 +2201,7 @@ public com.google.protobuf.ByteString getOrderByBytes() {
      * Only one sort field is permitted.
      * 

      *
-     * string order_by = 8;
+     * string order_by = 8 [(.google.api.field_behavior) = OPTIONAL];
      */
     public Builder setOrderBy(java.lang.String value) {
       if (value == null) {
@@ -2202,7 +2216,7 @@ public Builder setOrderBy(java.lang.String value) {
      *
      *
      * 
-     * Field used to sort the returned traces. Optional.
+     * Optional. Field used to sort the returned traces.
      * Can be one of the following:
      * *   `trace_id`
      * *   `name` (`name` field of root span in the trace)
@@ -2214,7 +2228,7 @@ public Builder setOrderBy(java.lang.String value) {
      * Only one sort field is permitted.
      * 

      *
-     * string order_by = 8;
+     * string order_by = 8 [(.google.api.field_behavior) = OPTIONAL];
      */
     public Builder clearOrderBy() {
 
@@ -2226,7 +2240,7 @@ public Builder clearOrderBy() {
      *
      *
      * 
-     * Field used to sort the returned traces. Optional.
+     * Optional. Field used to sort the returned traces.
      * Can be one of the following:
      * *   `trace_id`
      * *   `name` (`name` field of root span in the trace)
@@ -2238,7 +2252,7 @@ public Builder clearOrderBy() {
      * Only one sort field is permitted.
      * 

      *
-     * string order_by = 8;
+     * string order_by = 8 [(.google.api.field_behavior) = OPTIONAL];
      */
     public Builder setOrderByBytes(com.google.protobuf.ByteString value) {
       if (value == null) {
diff --git a/proto-google-cloud-trace-v1/src/main/java/com/google/devtools/cloudtrace/v1/ListTracesRequestOrBuilder.java b/proto-google-cloud-trace-v1/src/main/java/com/google/devtools/cloudtrace/v1/ListTracesRequestOrBuilder.java
index fb9fe3ea..954fed66 100644
--- a/proto-google-cloud-trace-v1/src/main/java/com/google/devtools/cloudtrace/v1/ListTracesRequestOrBuilder.java
+++ b/proto-google-cloud-trace-v1/src/main/java/com/google/devtools/cloudtrace/v1/ListTracesRequestOrBuilder.java
@@ -27,20 +27,20 @@ public interface ListTracesRequestOrBuilder
    *
    *
    * 
-   * ID of the Cloud project where the trace data is stored.
+   * Required. ID of the Cloud project where the trace data is stored.
    * 

    *
-   * string project_id = 1;
+   * string project_id = 1 [(.google.api.field_behavior) = REQUIRED];
    */
   java.lang.String getProjectId();
   /**
    *
    *
    * 
-   * ID of the Cloud project where the trace data is stored.
+   * Required. ID of the Cloud project where the trace data is stored.
    * 

    *
-   * string project_id = 1;
+   * string project_id = 1 [(.google.api.field_behavior) = REQUIRED];
    */
   com.google.protobuf.ByteString getProjectIdBytes();
 
@@ -48,22 +48,26 @@ public interface ListTracesRequestOrBuilder
    *
    *
    * 
-   * Type of data returned for traces in the list. Optional. Default is
+   * Optional. Type of data returned for traces in the list. Default is
    * `MINIMAL`.
    * 

    *
-   * .google.devtools.cloudtrace.v1.ListTracesRequest.ViewType view = 2;
+   * 
+   * .google.devtools.cloudtrace.v1.ListTracesRequest.ViewType view = 2 [(.google.api.field_behavior) = OPTIONAL];
+   * 
    */
   int getViewValue();
   /**
    *
    *
    * 
-   * Type of data returned for traces in the list. Optional. Default is
+   * Optional. Type of data returned for traces in the list. Default is
    * `MINIMAL`.
    * 

    *
-   * .google.devtools.cloudtrace.v1.ListTracesRequest.ViewType view = 2;
+   * 
+   * .google.devtools.cloudtrace.v1.ListTracesRequest.ViewType view = 2 [(.google.api.field_behavior) = OPTIONAL];
+   * 
    */
   com.google.devtools.cloudtrace.v1.ListTracesRequest.ViewType getView();
 
@@ -71,12 +75,12 @@ public interface ListTracesRequestOrBuilder
    *
    *
    * 
-   * Maximum number of traces to return. If not specified or <= 0, the
+   * Optional. Maximum number of traces to return. If not specified or <= 0, the
    * implementation selects a reasonable value.  The implementation may
-   * return fewer traces than the requested page size. Optional.
+   * return fewer traces than the requested page size.
    * 

    *
-   * int32 page_size = 3;
+   * int32 page_size = 3 [(.google.api.field_behavior) = OPTIONAL];
    */
   int getPageSize();
 
@@ -85,7 +89,7 @@ public interface ListTracesRequestOrBuilder
    *
    * 
    * Token identifying the page of results to return. If provided, use the
-   * value of the `next_page_token` field from a previous request. Optional.
+   * value of the `next_page_token` field from a previous request.
    * 

    *
    * string page_token = 4;
@@ -96,7 +100,7 @@ public interface ListTracesRequestOrBuilder
    *
    * 
    * Token identifying the page of results to return. If provided, use the
-   * value of the `next_page_token` field from a previous request. Optional.
+   * value of the `next_page_token` field from a previous request.
    * 

    *
    * string page_token = 4;
@@ -175,7 +179,7 @@ public interface ListTracesRequestOrBuilder
    *
    *
    * 
-   * An optional filter against labels for the request.
+   * Optional. A filter against labels for the request.
    * By default, searches use prefix matching. To specify exact match, prepend
    * a plus symbol (`+`) to the search term.
    * Multiple terms are ANDed. Syntax:
@@ -205,14 +209,14 @@ public interface ListTracesRequestOrBuilder
    * *   `url:VALUE`: Equivalent to `/http/url:VALUE`.
    * 

    *
-   * string filter = 7;
+   * string filter = 7 [(.google.api.field_behavior) = OPTIONAL];
    */
   java.lang.String getFilter();
   /**
    *
    *
    * 
-   * An optional filter against labels for the request.
+   * Optional. A filter against labels for the request.
    * By default, searches use prefix matching. To specify exact match, prepend
    * a plus symbol (`+`) to the search term.
    * Multiple terms are ANDed. Syntax:
@@ -242,7 +246,7 @@ public interface ListTracesRequestOrBuilder
    * *   `url:VALUE`: Equivalent to `/http/url:VALUE`.
    * 

    *
-   * string filter = 7;
+   * string filter = 7 [(.google.api.field_behavior) = OPTIONAL];
    */
   com.google.protobuf.ByteString getFilterBytes();
 
@@ -250,7 +254,7 @@ public interface ListTracesRequestOrBuilder
    *
    *
    * 
-   * Field used to sort the returned traces. Optional.
+   * Optional. Field used to sort the returned traces.
    * Can be one of the following:
    * *   `trace_id`
    * *   `name` (`name` field of root span in the trace)
@@ -262,14 +266,14 @@ public interface ListTracesRequestOrBuilder
    * Only one sort field is permitted.
    * 

    *
-   * string order_by = 8;
+   * string order_by = 8 [(.google.api.field_behavior) = OPTIONAL];
    */
   java.lang.String getOrderBy();
   /**
    *
    *
    * 
-   * Field used to sort the returned traces. Optional.
+   * Optional. Field used to sort the returned traces.
    * Can be one of the following:
    * *   `trace_id`
    * *   `name` (`name` field of root span in the trace)
@@ -281,7 +285,7 @@ public interface ListTracesRequestOrBuilder
    * Only one sort field is permitted.
    * 

    *
-   * string order_by = 8;
+   * string order_by = 8 [(.google.api.field_behavior) = OPTIONAL];
    */
   com.google.protobuf.ByteString getOrderByBytes();
 }
diff --git a/proto-google-cloud-trace-v1/src/main/java/com/google/devtools/cloudtrace/v1/ListTracesResponse.java b/proto-google-cloud-trace-v1/src/main/java/com/google/devtools/cloudtrace/v1/ListTracesResponse.java
index 842d0f8f..055ab008 100644
--- a/proto-google-cloud-trace-v1/src/main/java/com/google/devtools/cloudtrace/v1/ListTracesResponse.java
+++ b/proto-google-cloud-trace-v1/src/main/java/com/google/devtools/cloudtrace/v1/ListTracesResponse.java
@@ -128,7 +128,7 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
    *
    *
    * 
-   * List of trace records returned.
+   * List of trace records as specified by the view parameter.
    * 

    *
    * repeated .google.devtools.cloudtrace.v1.Trace traces = 1;
@@ -140,7 +140,7 @@ public java.util.List getTracesList() {
    *
    *
    * 
-   * List of trace records returned.
+   * List of trace records as specified by the view parameter.
    * 

    *
    * repeated .google.devtools.cloudtrace.v1.Trace traces = 1;
@@ -153,7 +153,7 @@ public java.util.List getTracesList() {
    *
    *
    * 
-   * List of trace records returned.
+   * List of trace records as specified by the view parameter.
    * 

    *
    * repeated .google.devtools.cloudtrace.v1.Trace traces = 1;
@@ -165,7 +165,7 @@ public int getTracesCount() {
    *
    *
    * 
-   * List of trace records returned.
+   * List of trace records as specified by the view parameter.
    * 

    *
    * repeated .google.devtools.cloudtrace.v1.Trace traces = 1;
@@ -177,7 +177,7 @@ public com.google.devtools.cloudtrace.v1.Trace getTraces(int index) {
    *
    *
    * 
-   * List of trace records returned.
+   * List of trace records as specified by the view parameter.
    * 

    *
    * repeated .google.devtools.cloudtrace.v1.Trace traces = 1;
@@ -631,7 +631,7 @@ private void ensureTracesIsMutable() {
      *
      *
      * 
-     * List of trace records returned.
+     * List of trace records as specified by the view parameter.
      * 

      *
      * repeated .google.devtools.cloudtrace.v1.Trace traces = 1;
@@ -647,7 +647,7 @@ public java.util.List getTracesList() {
      *
      *
      * 
-     * List of trace records returned.
+     * List of trace records as specified by the view parameter.
      * 

      *
      * repeated .google.devtools.cloudtrace.v1.Trace traces = 1;
@@ -663,7 +663,7 @@ public int getTracesCount() {
      *
      *
      * 
-     * List of trace records returned.
+     * List of trace records as specified by the view parameter.
      * 

      *
      * repeated .google.devtools.cloudtrace.v1.Trace traces = 1;
@@ -679,7 +679,7 @@ public com.google.devtools.cloudtrace.v1.Trace getTraces(int index) {
      *
      *
      * 
-     * List of trace records returned.
+     * List of trace records as specified by the view parameter.
      * 

      *
      * repeated .google.devtools.cloudtrace.v1.Trace traces = 1;
@@ -701,7 +701,7 @@ public Builder setTraces(int index, com.google.devtools.cloudtrace.v1.Trace valu
      *
      *
      * 
-     * List of trace records returned.
+     * List of trace records as specified by the view parameter.
      * 

      *
      * repeated .google.devtools.cloudtrace.v1.Trace traces = 1;
@@ -721,7 +721,7 @@ public Builder setTraces(
      *
      *
      * 
-     * List of trace records returned.
+     * List of trace records as specified by the view parameter.
      * 

      *
      * repeated .google.devtools.cloudtrace.v1.Trace traces = 1;
@@ -743,7 +743,7 @@ public Builder addTraces(com.google.devtools.cloudtrace.v1.Trace value) {
      *
      *
      * 
-     * List of trace records returned.
+     * List of trace records as specified by the view parameter.
      * 

      *
      * repeated .google.devtools.cloudtrace.v1.Trace traces = 1;
@@ -765,7 +765,7 @@ public Builder addTraces(int index, com.google.devtools.cloudtrace.v1.Trace valu
      *
      *
      * 
-     * List of trace records returned.
+     * List of trace records as specified by the view parameter.
      * 

      *
      * repeated .google.devtools.cloudtrace.v1.Trace traces = 1;
@@ -784,7 +784,7 @@ public Builder addTraces(com.google.devtools.cloudtrace.v1.Trace.Builder builder
      *
      *
      * 
-     * List of trace records returned.
+     * List of trace records as specified by the view parameter.
      * 

      *
      * repeated .google.devtools.cloudtrace.v1.Trace traces = 1;
@@ -804,7 +804,7 @@ public Builder addTraces(
      *
      *
      * 
-     * List of trace records returned.
+     * List of trace records as specified by the view parameter.
      * 

      *
      * repeated .google.devtools.cloudtrace.v1.Trace traces = 1;
@@ -824,7 +824,7 @@ public Builder addAllTraces(
      *
      *
      * 
-     * List of trace records returned.
+     * List of trace records as specified by the view parameter.
      * 

      *
      * repeated .google.devtools.cloudtrace.v1.Trace traces = 1;
@@ -843,7 +843,7 @@ public Builder clearTraces() {
      *
      *
      * 
-     * List of trace records returned.
+     * List of trace records as specified by the view parameter.
      * 

      *
      * repeated .google.devtools.cloudtrace.v1.Trace traces = 1;
@@ -862,7 +862,7 @@ public Builder removeTraces(int index) {
      *
      *
      * 
-     * List of trace records returned.
+     * List of trace records as specified by the view parameter.
      * 

      *
      * repeated .google.devtools.cloudtrace.v1.Trace traces = 1;
@@ -874,7 +874,7 @@ public com.google.devtools.cloudtrace.v1.Trace.Builder getTracesBuilder(int inde
      *
      *
      * 
-     * List of trace records returned.
+     * List of trace records as specified by the view parameter.
      * 

      *
      * repeated .google.devtools.cloudtrace.v1.Trace traces = 1;
@@ -890,7 +890,7 @@ public com.google.devtools.cloudtrace.v1.TraceOrBuilder getTracesOrBuilder(int i
      *
      *
      * 
-     * List of trace records returned.
+     * List of trace records as specified by the view parameter.
      * 

      *
      * repeated .google.devtools.cloudtrace.v1.Trace traces = 1;
@@ -907,7 +907,7 @@ public com.google.devtools.cloudtrace.v1.TraceOrBuilder getTracesOrBuilder(int i
      *
      *
      * 
-     * List of trace records returned.
+     * List of trace records as specified by the view parameter.
      * 

      *
      * repeated .google.devtools.cloudtrace.v1.Trace traces = 1;
@@ -920,7 +920,7 @@ public com.google.devtools.cloudtrace.v1.Trace.Builder addTracesBuilder() {
      *
      *
      * 
-     * List of trace records returned.
+     * List of trace records as specified by the view parameter.
      * 

      *
      * repeated .google.devtools.cloudtrace.v1.Trace traces = 1;
@@ -933,7 +933,7 @@ public com.google.devtools.cloudtrace.v1.Trace.Builder addTracesBuilder(int inde
      *
      *
      * 
-     * List of trace records returned.
+     * List of trace records as specified by the view parameter.
      * 

      *
      * repeated .google.devtools.cloudtrace.v1.Trace traces = 1;
diff --git a/proto-google-cloud-trace-v1/src/main/java/com/google/devtools/cloudtrace/v1/ListTracesResponseOrBuilder.java b/proto-google-cloud-trace-v1/src/main/java/com/google/devtools/cloudtrace/v1/ListTracesResponseOrBuilder.java
index 5141157d..770b656d 100644
--- a/proto-google-cloud-trace-v1/src/main/java/com/google/devtools/cloudtrace/v1/ListTracesResponseOrBuilder.java
+++ b/proto-google-cloud-trace-v1/src/main/java/com/google/devtools/cloudtrace/v1/ListTracesResponseOrBuilder.java
@@ -27,7 +27,7 @@ public interface ListTracesResponseOrBuilder
    *
    *
    * 
-   * List of trace records returned.
+   * List of trace records as specified by the view parameter.
    * 

    *
    * repeated .google.devtools.cloudtrace.v1.Trace traces = 1;
@@ -37,7 +37,7 @@ public interface ListTracesResponseOrBuilder
    *
    *
    * 
-   * List of trace records returned.
+   * List of trace records as specified by the view parameter.
    * 

    *
    * repeated .google.devtools.cloudtrace.v1.Trace traces = 1;
@@ -47,7 +47,7 @@ public interface ListTracesResponseOrBuilder
    *
    *
    * 
-   * List of trace records returned.
+   * List of trace records as specified by the view parameter.
    * 

    *
    * repeated .google.devtools.cloudtrace.v1.Trace traces = 1;
@@ -57,7 +57,7 @@ public interface ListTracesResponseOrBuilder
    *
    *
    * 
-   * List of trace records returned.
+   * List of trace records as specified by the view parameter.
    * 

    *
    * repeated .google.devtools.cloudtrace.v1.Trace traces = 1;
@@ -68,7 +68,7 @@ public interface ListTracesResponseOrBuilder
    *
    *
    * 
-   * List of trace records returned.
+   * List of trace records as specified by the view parameter.
    * 

    *
    * repeated .google.devtools.cloudtrace.v1.Trace traces = 1;
diff --git a/proto-google-cloud-trace-v1/src/main/java/com/google/devtools/cloudtrace/v1/PatchTracesRequest.java b/proto-google-cloud-trace-v1/src/main/java/com/google/devtools/cloudtrace/v1/PatchTracesRequest.java
index 740abc3c..35f1ee9b 100644
--- a/proto-google-cloud-trace-v1/src/main/java/com/google/devtools/cloudtrace/v1/PatchTracesRequest.java
+++ b/proto-google-cloud-trace-v1/src/main/java/com/google/devtools/cloudtrace/v1/PatchTracesRequest.java
@@ -128,10 +128,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
    *
    *
    * 
-   * ID of the Cloud project where the trace data is stored.
+   * Required. ID of the Cloud project where the trace data is stored.
    * 

    *
-   * string project_id = 1;
+   * string project_id = 1 [(.google.api.field_behavior) = REQUIRED];
    */
   public java.lang.String getProjectId() {
     java.lang.Object ref = projectId_;
@@ -148,10 +148,10 @@ public java.lang.String getProjectId() {
    *
    *
    * 
-   * ID of the Cloud project where the trace data is stored.
+   * Required. ID of the Cloud project where the trace data is stored.
    * 

    *
-   * string project_id = 1;
+   * string project_id = 1 [(.google.api.field_behavior) = REQUIRED];
    */
   public com.google.protobuf.ByteString getProjectIdBytes() {
     java.lang.Object ref = projectId_;
@@ -171,10 +171,12 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
    *
    *
    * 
-   * The body of the message.
+   * Required. The body of the message.
    * 

    *
-   * .google.devtools.cloudtrace.v1.Traces traces = 2;
+   * 
+   * .google.devtools.cloudtrace.v1.Traces traces = 2 [(.google.api.field_behavior) = REQUIRED];
+   * 
    */
   public boolean hasTraces() {
     return traces_ != null;
@@ -183,10 +185,12 @@ public boolean hasTraces() {
    *
    *
    * 
-   * The body of the message.
+   * Required. The body of the message.
    * 

    *
-   * .google.devtools.cloudtrace.v1.Traces traces = 2;
+   * 
+   * .google.devtools.cloudtrace.v1.Traces traces = 2 [(.google.api.field_behavior) = REQUIRED];
+   * 
    */
   public com.google.devtools.cloudtrace.v1.Traces getTraces() {
     return traces_ == null
@@ -197,10 +201,12 @@ public com.google.devtools.cloudtrace.v1.Traces getTraces() {
    *
    *
    * 
-   * The body of the message.
+   * Required. The body of the message.
    * 

    *
-   * .google.devtools.cloudtrace.v1.Traces traces = 2;
+   * 
+   * .google.devtools.cloudtrace.v1.Traces traces = 2 [(.google.api.field_behavior) = REQUIRED];
+   * 
    */
   public com.google.devtools.cloudtrace.v1.TracesOrBuilder getTracesOrBuilder() {
     return getTraces();
@@ -557,10 +563,10 @@ public Builder mergeFrom(
      *
      *
      * 
-     * ID of the Cloud project where the trace data is stored.
+     * Required. ID of the Cloud project where the trace data is stored.
      * 

      *
-     * string project_id = 1;
+     * string project_id = 1 [(.google.api.field_behavior) = REQUIRED];
      */
     public java.lang.String getProjectId() {
       java.lang.Object ref = projectId_;
@@ -577,10 +583,10 @@ public java.lang.String getProjectId() {
      *
      *
      * 
-     * ID of the Cloud project where the trace data is stored.
+     * Required. ID of the Cloud project where the trace data is stored.
      * 

      *
-     * string project_id = 1;
+     * string project_id = 1 [(.google.api.field_behavior) = REQUIRED];
      */
     public com.google.protobuf.ByteString getProjectIdBytes() {
       java.lang.Object ref = projectId_;
@@ -597,10 +603,10 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
      *
      *
      * 
-     * ID of the Cloud project where the trace data is stored.
+     * Required. ID of the Cloud project where the trace data is stored.
      * 

      *
-     * string project_id = 1;
+     * string project_id = 1 [(.google.api.field_behavior) = REQUIRED];
      */
     public Builder setProjectId(java.lang.String value) {
       if (value == null) {
@@ -615,10 +621,10 @@ public Builder setProjectId(java.lang.String value) {
      *
      *
      * 
-     * ID of the Cloud project where the trace data is stored.
+     * Required. ID of the Cloud project where the trace data is stored.
      * 

      *
-     * string project_id = 1;
+     * string project_id = 1 [(.google.api.field_behavior) = REQUIRED];
      */
     public Builder clearProjectId() {
 
@@ -630,10 +636,10 @@ public Builder clearProjectId() {
      *
      *
      * 
-     * ID of the Cloud project where the trace data is stored.
+     * Required. ID of the Cloud project where the trace data is stored.
      * 

      *
-     * string project_id = 1;
+     * string project_id = 1 [(.google.api.field_behavior) = REQUIRED];
      */
     public Builder setProjectIdBytes(com.google.protobuf.ByteString value) {
       if (value == null) {
@@ -656,10 +662,12 @@ public Builder setProjectIdBytes(com.google.protobuf.ByteString value) {
      *
      *
      * 
-     * The body of the message.
+     * Required. The body of the message.
      * 

      *
-     * .google.devtools.cloudtrace.v1.Traces traces = 2;
+     * 
+     * .google.devtools.cloudtrace.v1.Traces traces = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
      */
     public boolean hasTraces() {
       return tracesBuilder_ != null || traces_ != null;
@@ -668,10 +676,12 @@ public boolean hasTraces() {
      *
      *
      * 
-     * The body of the message.
+     * Required. The body of the message.
      * 

      *
-     * .google.devtools.cloudtrace.v1.Traces traces = 2;
+     * 
+     * .google.devtools.cloudtrace.v1.Traces traces = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
      */
     public com.google.devtools.cloudtrace.v1.Traces getTraces() {
       if (tracesBuilder_ == null) {
@@ -686,10 +696,12 @@ public com.google.devtools.cloudtrace.v1.Traces getTraces() {
      *
      *
      * 
-     * The body of the message.
+     * Required. The body of the message.
      * 

      *
-     * .google.devtools.cloudtrace.v1.Traces traces = 2;
+     * 
+     * .google.devtools.cloudtrace.v1.Traces traces = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
      */
     public Builder setTraces(com.google.devtools.cloudtrace.v1.Traces value) {
       if (tracesBuilder_ == null) {
@@ -708,10 +720,12 @@ public Builder setTraces(com.google.devtools.cloudtrace.v1.Traces value) {
      *
      *
      * 
-     * The body of the message.
+     * Required. The body of the message.
      * 

      *
-     * .google.devtools.cloudtrace.v1.Traces traces = 2;
+     * 
+     * .google.devtools.cloudtrace.v1.Traces traces = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
      */
     public Builder setTraces(com.google.devtools.cloudtrace.v1.Traces.Builder builderForValue) {
       if (tracesBuilder_ == null) {
@@ -727,10 +741,12 @@ public Builder setTraces(com.google.devtools.cloudtrace.v1.Traces.Builder builde
      *
      *
      * 
-     * The body of the message.
+     * Required. The body of the message.
      * 

      *
-     * .google.devtools.cloudtrace.v1.Traces traces = 2;
+     * 
+     * .google.devtools.cloudtrace.v1.Traces traces = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
      */
     public Builder mergeTraces(com.google.devtools.cloudtrace.v1.Traces value) {
       if (tracesBuilder_ == null) {
@@ -753,10 +769,12 @@ public Builder mergeTraces(com.google.devtools.cloudtrace.v1.Traces value) {
      *
      *
      * 
-     * The body of the message.
+     * Required. The body of the message.
      * 

      *
-     * .google.devtools.cloudtrace.v1.Traces traces = 2;
+     * 
+     * .google.devtools.cloudtrace.v1.Traces traces = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
      */
     public Builder clearTraces() {
       if (tracesBuilder_ == null) {
@@ -773,10 +791,12 @@ public Builder clearTraces() {
      *
      *
      * 
-     * The body of the message.
+     * Required. The body of the message.
      * 

      *
-     * .google.devtools.cloudtrace.v1.Traces traces = 2;
+     * 
+     * .google.devtools.cloudtrace.v1.Traces traces = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
      */
     public com.google.devtools.cloudtrace.v1.Traces.Builder getTracesBuilder() {
 
@@ -787,10 +807,12 @@ public com.google.devtools.cloudtrace.v1.Traces.Builder getTracesBuilder() {
      *
      *
      * 
-     * The body of the message.
+     * Required. The body of the message.
      * 

      *
-     * .google.devtools.cloudtrace.v1.Traces traces = 2;
+     * 
+     * .google.devtools.cloudtrace.v1.Traces traces = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
      */
     public com.google.devtools.cloudtrace.v1.TracesOrBuilder getTracesOrBuilder() {
       if (tracesBuilder_ != null) {
@@ -805,10 +827,12 @@ public com.google.devtools.cloudtrace.v1.TracesOrBuilder getTracesOrBuilder() {
      *
      *
      * 
-     * The body of the message.
+     * Required. The body of the message.
      * 

      *
-     * .google.devtools.cloudtrace.v1.Traces traces = 2;
+     * 
+     * .google.devtools.cloudtrace.v1.Traces traces = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
      */
     private com.google.protobuf.SingleFieldBuilderV3<
             com.google.devtools.cloudtrace.v1.Traces,
diff --git a/proto-google-cloud-trace-v1/src/main/java/com/google/devtools/cloudtrace/v1/PatchTracesRequestOrBuilder.java b/proto-google-cloud-trace-v1/src/main/java/com/google/devtools/cloudtrace/v1/PatchTracesRequestOrBuilder.java
index 0a2f2c4c..be4ee0bd 100644
--- a/proto-google-cloud-trace-v1/src/main/java/com/google/devtools/cloudtrace/v1/PatchTracesRequestOrBuilder.java
+++ b/proto-google-cloud-trace-v1/src/main/java/com/google/devtools/cloudtrace/v1/PatchTracesRequestOrBuilder.java
@@ -27,20 +27,20 @@ public interface PatchTracesRequestOrBuilder
    *
    *
    * 
-   * ID of the Cloud project where the trace data is stored.
+   * Required. ID of the Cloud project where the trace data is stored.
    * 

    *
-   * string project_id = 1;
+   * string project_id = 1 [(.google.api.field_behavior) = REQUIRED];
    */
   java.lang.String getProjectId();
   /**
    *
    *
    * 
-   * ID of the Cloud project where the trace data is stored.
+   * Required. ID of the Cloud project where the trace data is stored.
    * 

    *
-   * string project_id = 1;
+   * string project_id = 1 [(.google.api.field_behavior) = REQUIRED];
    */
   com.google.protobuf.ByteString getProjectIdBytes();
 
@@ -48,30 +48,36 @@ public interface PatchTracesRequestOrBuilder
    *
    *
    * 
-   * The body of the message.
+   * Required. The body of the message.
    * 

    *
-   * .google.devtools.cloudtrace.v1.Traces traces = 2;
+   * 
+   * .google.devtools.cloudtrace.v1.Traces traces = 2 [(.google.api.field_behavior) = REQUIRED];
+   * 
    */
   boolean hasTraces();
   /**
    *
    *
    * 
-   * The body of the message.
+   * Required. The body of the message.
    * 

    *
-   * .google.devtools.cloudtrace.v1.Traces traces = 2;
+   * 
+   * .google.devtools.cloudtrace.v1.Traces traces = 2 [(.google.api.field_behavior) = REQUIRED];
+   * 
    */
   com.google.devtools.cloudtrace.v1.Traces getTraces();
   /**
    *
    *
    * 
-   * The body of the message.
+   * Required. The body of the message.
    * 

    *
-   * .google.devtools.cloudtrace.v1.Traces traces = 2;
+   * 
+   * .google.devtools.cloudtrace.v1.Traces traces = 2 [(.google.api.field_behavior) = REQUIRED];
+   * 
    */
   com.google.devtools.cloudtrace.v1.TracesOrBuilder getTracesOrBuilder();
 }
diff --git a/proto-google-cloud-trace-v1/src/main/java/com/google/devtools/cloudtrace/v1/Trace.java b/proto-google-cloud-trace-v1/src/main/java/com/google/devtools/cloudtrace/v1/Trace.java
index e0bd93aa..756f6e15 100644
--- a/proto-google-cloud-trace-v1/src/main/java/com/google/devtools/cloudtrace/v1/Trace.java
+++ b/proto-google-cloud-trace-v1/src/main/java/com/google/devtools/cloudtrace/v1/Trace.java
@@ -182,7 +182,8 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
    *
    * 
    * Globally unique identifier for the trace. This identifier is a 128-bit
-   * numeric value formatted as a 32-byte hex string.
+   * numeric value formatted as a 32-byte hex string. For example,
+   * `382d4f4c6b7bb2f4a972559d9085001d`.
    * 

    *
    * string trace_id = 2;
@@ -203,7 +204,8 @@ public java.lang.String getTraceId() {
    *
    * 
    * Globally unique identifier for the trace. This identifier is a 128-bit
-   * numeric value formatted as a 32-byte hex string.
+   * numeric value formatted as a 32-byte hex string. For example,
+   * `382d4f4c6b7bb2f4a972559d9085001d`.
    * 

    *
    * string trace_id = 2;
@@ -777,7 +779,8 @@ public Builder setProjectIdBytes(com.google.protobuf.ByteString value) {
      *
      * 
      * Globally unique identifier for the trace. This identifier is a 128-bit
-     * numeric value formatted as a 32-byte hex string.
+     * numeric value formatted as a 32-byte hex string. For example,
+     * `382d4f4c6b7bb2f4a972559d9085001d`.
      * 

      *
      * string trace_id = 2;
@@ -798,7 +801,8 @@ public java.lang.String getTraceId() {
      *
      * 
      * Globally unique identifier for the trace. This identifier is a 128-bit
-     * numeric value formatted as a 32-byte hex string.
+     * numeric value formatted as a 32-byte hex string. For example,
+     * `382d4f4c6b7bb2f4a972559d9085001d`.
      * 

      *
      * string trace_id = 2;
@@ -819,7 +823,8 @@ public com.google.protobuf.ByteString getTraceIdBytes() {
      *
      * 
      * Globally unique identifier for the trace. This identifier is a 128-bit
-     * numeric value formatted as a 32-byte hex string.
+     * numeric value formatted as a 32-byte hex string. For example,
+     * `382d4f4c6b7bb2f4a972559d9085001d`.
      * 

      *
      * string trace_id = 2;
@@ -838,7 +843,8 @@ public Builder setTraceId(java.lang.String value) {
      *
      * 
      * Globally unique identifier for the trace. This identifier is a 128-bit
-     * numeric value formatted as a 32-byte hex string.
+     * numeric value formatted as a 32-byte hex string. For example,
+     * `382d4f4c6b7bb2f4a972559d9085001d`.
      * 

      *
      * string trace_id = 2;
@@ -854,7 +860,8 @@ public Builder clearTraceId() {
      *
      * 
      * Globally unique identifier for the trace. This identifier is a 128-bit
-     * numeric value formatted as a 32-byte hex string.
+     * numeric value formatted as a 32-byte hex string. For example,
+     * `382d4f4c6b7bb2f4a972559d9085001d`.
      * 

      *
      * string trace_id = 2;
diff --git a/proto-google-cloud-trace-v1/src/main/java/com/google/devtools/cloudtrace/v1/TraceOrBuilder.java b/proto-google-cloud-trace-v1/src/main/java/com/google/devtools/cloudtrace/v1/TraceOrBuilder.java
index 9462143b..7ff7609e 100644
--- a/proto-google-cloud-trace-v1/src/main/java/com/google/devtools/cloudtrace/v1/TraceOrBuilder.java
+++ b/proto-google-cloud-trace-v1/src/main/java/com/google/devtools/cloudtrace/v1/TraceOrBuilder.java
@@ -49,7 +49,8 @@ public interface TraceOrBuilder
    *
    * 
    * Globally unique identifier for the trace. This identifier is a 128-bit
-   * numeric value formatted as a 32-byte hex string.
+   * numeric value formatted as a 32-byte hex string. For example,
+   * `382d4f4c6b7bb2f4a972559d9085001d`.
    * 

    *
    * string trace_id = 2;
@@ -60,7 +61,8 @@ public interface TraceOrBuilder
    *
    * 
    * Globally unique identifier for the trace. This identifier is a 128-bit
-   * numeric value formatted as a 32-byte hex string.
+   * numeric value formatted as a 32-byte hex string. For example,
+   * `382d4f4c6b7bb2f4a972559d9085001d`.
    * 

    *
    * string trace_id = 2;
diff --git a/proto-google-cloud-trace-v1/src/main/java/com/google/devtools/cloudtrace/v1/TraceProto.java b/proto-google-cloud-trace-v1/src/main/java/com/google/devtools/cloudtrace/v1/TraceProto.java
index 798a540d..86bcdf44 100644
--- a/proto-google-cloud-trace-v1/src/main/java/com/google/devtools/cloudtrace/v1/TraceProto.java
+++ b/proto-google-cloud-trace-v1/src/main/java/com/google/devtools/cloudtrace/v1/TraceProto.java
@@ -70,55 +70,64 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
     java.lang.String[] descriptorData = {
       "\n)google/devtools/cloudtrace/v1/trace.pr"
           + "oto\022\035google.devtools.cloudtrace.v1\032\034goog"
-          + "le/api/annotations.proto\032\033google/protobu"
-          + "f/empty.proto\032\037google/protobuf/timestamp"
-          + ".proto\"f\n\005Trace\022\022\n\nproject_id\030\001 \001(\t\022\020\n\010t"
-          + "race_id\030\002 \001(\t\0227\n\005spans\030\003 \003(\0132(.google.de"
-          + "vtools.cloudtrace.v1.TraceSpan\">\n\006Traces"
-          + "\0224\n\006traces\030\001 \003(\0132$.google.devtools.cloud"
-          + "trace.v1.Trace\"\235\003\n\tTraceSpan\022\017\n\007span_id\030"
-          + "\001 \001(\006\022?\n\004kind\030\002 \001(\01621.google.devtools.cl"
-          + "oudtrace.v1.TraceSpan.SpanKind\022\014\n\004name\030\003"
-          + " \001(\t\022.\n\nstart_time\030\004 \001(\0132\032.google.protob"
-          + "uf.Timestamp\022,\n\010end_time\030\005 \001(\0132\032.google."
-          + "protobuf.Timestamp\022\026\n\016parent_span_id\030\006 \001"
-          + "(\006\022D\n\006labels\030\007 \003(\01324.google.devtools.clo"
-          + "udtrace.v1.TraceSpan.LabelsEntry\032-\n\013Labe"
-          + "lsEntry\022\013\n\003key\030\001 \001(\t\022\r\n\005value\030\002 \001(\t:\0028\001\""
-          + "E\n\010SpanKind\022\031\n\025SPAN_KIND_UNSPECIFIED\020\000\022\016"
-          + "\n\nRPC_SERVER\020\001\022\016\n\nRPC_CLIENT\020\002\"\347\002\n\021ListT"
-          + "racesRequest\022\022\n\nproject_id\030\001 \001(\t\022G\n\004view"
-          + "\030\002 \001(\01629.google.devtools.cloudtrace.v1.L"
-          + "istTracesRequest.ViewType\022\021\n\tpage_size\030\003"
-          + " \001(\005\022\022\n\npage_token\030\004 \001(\t\022.\n\nstart_time\030\005"
-          + " \001(\0132\032.google.protobuf.Timestamp\022,\n\010end_"
-          + "time\030\006 \001(\0132\032.google.protobuf.Timestamp\022\016"
-          + "\n\006filter\030\007 \001(\t\022\020\n\010order_by\030\010 \001(\t\"N\n\010View"
-          + "Type\022\031\n\025VIEW_TYPE_UNSPECIFIED\020\000\022\013\n\007MINIM"
-          + "AL\020\001\022\014\n\010ROOTSPAN\020\002\022\014\n\010COMPLETE\020\003\"c\n\022List"
-          + "TracesResponse\0224\n\006traces\030\001 \003(\0132$.google."
-          + "devtools.cloudtrace.v1.Trace\022\027\n\017next_pag"
-          + "e_token\030\002 \001(\t\"7\n\017GetTraceRequest\022\022\n\nproj"
-          + "ect_id\030\001 \001(\t\022\020\n\010trace_id\030\002 \001(\t\"_\n\022PatchT"
-          + "racesRequest\022\022\n\nproject_id\030\001 \001(\t\0225\n\006trac"
-          + "es\030\002 \001(\0132%.google.devtools.cloudtrace.v1"
-          + ".Traces2\321\003\n\014TraceService\022\233\001\n\nListTraces\022"
-          + "0.google.devtools.cloudtrace.v1.ListTrac"
-          + "esRequest\0321.google.devtools.cloudtrace.v"
-          + "1.ListTracesResponse\"(\202\323\344\223\002\"\022 /v1/projec"
-          + "ts/{project_id}/traces\022\225\001\n\010GetTrace\022..go"
-          + "ogle.devtools.cloudtrace.v1.GetTraceRequ"
-          + "est\032$.google.devtools.cloudtrace.v1.Trac"
-          + "e\"3\202\323\344\223\002-\022+/v1/projects/{project_id}/tra"
-          + "ces/{trace_id}\022\212\001\n\013PatchTraces\0221.google."
-          + "devtools.cloudtrace.v1.PatchTracesReques"
-          + "t\032\026.google.protobuf.Empty\"0\202\323\344\223\002*2 /v1/p"
-          + "rojects/{project_id}/traces:\006tracesB\252\001\n!"
-          + "com.google.devtools.cloudtrace.v1B\nTrace"
-          + "ProtoP\001ZGgoogle.golang.org/genproto/goog"
-          + "leapis/devtools/cloudtrace/v1;cloudtrace"
-          + "\252\002\025Google.Cloud.Trace.V1\312\002\025Google\\Cloud\\"
-          + "Trace\\V1b\006proto3"
+          + "le/api/annotations.proto\032\027google/api/cli"
+          + "ent.proto\032\037google/api/field_behavior.pro"
+          + "to\032\031google/api/resource.proto\032\033google/pr"
+          + "otobuf/empty.proto\032\037google/protobuf/time"
+          + "stamp.proto\"f\n\005Trace\022\022\n\nproject_id\030\001 \001(\t"
+          + "\022\020\n\010trace_id\030\002 \001(\t\0227\n\005spans\030\003 \003(\0132(.goog"
+          + "le.devtools.cloudtrace.v1.TraceSpan\">\n\006T"
+          + "races\0224\n\006traces\030\001 \003(\0132$.google.devtools."
+          + "cloudtrace.v1.Trace\"\242\003\n\tTraceSpan\022\017\n\007spa"
+          + "n_id\030\001 \001(\006\022?\n\004kind\030\002 \001(\01621.google.devtoo"
+          + "ls.cloudtrace.v1.TraceSpan.SpanKind\022\014\n\004n"
+          + "ame\030\003 \001(\t\022.\n\nstart_time\030\004 \001(\0132\032.google.p"
+          + "rotobuf.Timestamp\022,\n\010end_time\030\005 \001(\0132\032.go"
+          + "ogle.protobuf.Timestamp\022\033\n\016parent_span_i"
+          + "d\030\006 \001(\006B\003\340A\001\022D\n\006labels\030\007 \003(\01324.google.de"
+          + "vtools.cloudtrace.v1.TraceSpan.LabelsEnt"
+          + "ry\032-\n\013LabelsEntry\022\013\n\003key\030\001 \001(\t\022\r\n\005value\030"
+          + "\002 \001(\t:\0028\001\"E\n\010SpanKind\022\031\n\025SPAN_KIND_UNSPE"
+          + "CIFIED\020\000\022\016\n\nRPC_SERVER\020\001\022\016\n\nRPC_CLIENT\020\002"
+          + "\"\200\003\n\021ListTracesRequest\022\027\n\nproject_id\030\001 \001"
+          + "(\tB\003\340A\002\022L\n\004view\030\002 \001(\01629.google.devtools."
+          + "cloudtrace.v1.ListTracesRequest.ViewType"
+          + "B\003\340A\001\022\026\n\tpage_size\030\003 \001(\005B\003\340A\001\022\022\n\npage_to"
+          + "ken\030\004 \001(\t\022.\n\nstart_time\030\005 \001(\0132\032.google.p"
+          + "rotobuf.Timestamp\022,\n\010end_time\030\006 \001(\0132\032.go"
+          + "ogle.protobuf.Timestamp\022\023\n\006filter\030\007 \001(\tB"
+          + "\003\340A\001\022\025\n\010order_by\030\010 \001(\tB\003\340A\001\"N\n\010ViewType\022"
+          + "\031\n\025VIEW_TYPE_UNSPECIFIED\020\000\022\013\n\007MINIMAL\020\001\022"
+          + "\014\n\010ROOTSPAN\020\002\022\014\n\010COMPLETE\020\003\"c\n\022ListTrace"
+          + "sResponse\0224\n\006traces\030\001 \003(\0132$.google.devto"
+          + "ols.cloudtrace.v1.Trace\022\027\n\017next_page_tok"
+          + "en\030\002 \001(\t\"A\n\017GetTraceRequest\022\027\n\nproject_i"
+          + "d\030\001 \001(\tB\003\340A\002\022\025\n\010trace_id\030\002 \001(\tB\003\340A\002\"i\n\022P"
+          + "atchTracesRequest\022\027\n\nproject_id\030\001 \001(\tB\003\340"
+          + "A\002\022:\n\006traces\030\002 \001(\0132%.google.devtools.clo"
+          + "udtrace.v1.TracesB\003\340A\0022\265\005\n\014TraceService\022"
+          + "\250\001\n\nListTraces\0220.google.devtools.cloudtr"
+          + "ace.v1.ListTracesRequest\0321.google.devtoo"
+          + "ls.cloudtrace.v1.ListTracesResponse\"5\202\323\344"
+          + "\223\002\"\022 /v1/projects/{project_id}/traces\332A\n"
+          + "project_id\022\253\001\n\010GetTrace\022..google.devtool"
+          + "s.cloudtrace.v1.GetTraceRequest\032$.google"
+          + ".devtools.cloudtrace.v1.Trace\"I\202\323\344\223\002-\022+/"
+          + "v1/projects/{project_id}/traces/{trace_i"
+          + "d}\332A\023project_id,trace_id\022\236\001\n\013PatchTraces"
+          + "\0221.google.devtools.cloudtrace.v1.PatchTr"
+          + "acesRequest\032\026.google.protobuf.Empty\"D\202\323\344"
+          + "\223\002*2 /v1/projects/{project_id}/traces:\006t"
+          + "races\332A\021project_id,traces\032\252\001\312A\031cloudtrac"
+          + "e.googleapis.com\322A\212\001https://www.googleap"
+          + "is.com/auth/cloud-platform,https://www.g"
+          + "oogleapis.com/auth/trace.append,https://"
+          + "www.googleapis.com/auth/trace.readonlyB\252"
+          + "\001\n!com.google.devtools.cloudtrace.v1B\nTr"
+          + "aceProtoP\001ZGgoogle.golang.org/genproto/g"
+          + "oogleapis/devtools/cloudtrace/v1;cloudtr"
+          + "ace\252\002\025Google.Cloud.Trace.V1\312\002\025Google\\Clo"
+          + "ud\\Trace\\V1b\006proto3"
     };
     com.google.protobuf.Descriptors.FileDescriptor.InternalDescriptorAssigner assigner =
         new com.google.protobuf.Descriptors.FileDescriptor.InternalDescriptorAssigner() {
@@ -132,6 +141,9 @@ public com.google.protobuf.ExtensionRegistry assignDescriptors(
         descriptorData,
         new com.google.protobuf.Descriptors.FileDescriptor[] {
           com.google.api.AnnotationsProto.getDescriptor(),
+          com.google.api.ClientProto.getDescriptor(),
+          com.google.api.FieldBehaviorProto.getDescriptor(),
+          com.google.api.ResourceProto.getDescriptor(),
           com.google.protobuf.EmptyProto.getDescriptor(),
           com.google.protobuf.TimestampProto.getDescriptor(),
         },
@@ -209,10 +221,17 @@ public com.google.protobuf.ExtensionRegistry assignDescriptors(
             });
     com.google.protobuf.ExtensionRegistry registry =
         com.google.protobuf.ExtensionRegistry.newInstance();
+    registry.add(com.google.api.ClientProto.defaultHost);
+    registry.add(com.google.api.FieldBehaviorProto.fieldBehavior);
     registry.add(com.google.api.AnnotationsProto.http);
+    registry.add(com.google.api.ClientProto.methodSignature);
+    registry.add(com.google.api.ClientProto.oauthScopes);
     com.google.protobuf.Descriptors.FileDescriptor.internalUpdateFileDescriptor(
         descriptor, registry);
     com.google.api.AnnotationsProto.getDescriptor();
+    com.google.api.ClientProto.getDescriptor();
+    com.google.api.FieldBehaviorProto.getDescriptor();
+    com.google.api.ResourceProto.getDescriptor();
     com.google.protobuf.EmptyProto.getDescriptor();
     com.google.protobuf.TimestampProto.getDescriptor();
   }
diff --git a/proto-google-cloud-trace-v1/src/main/java/com/google/devtools/cloudtrace/v1/TraceSpan.java b/proto-google-cloud-trace-v1/src/main/java/com/google/devtools/cloudtrace/v1/TraceSpan.java
index e4c68ca7..9e0ec4cf 100644
--- a/proto-google-cloud-trace-v1/src/main/java/com/google/devtools/cloudtrace/v1/TraceSpan.java
+++ b/proto-google-cloud-trace-v1/src/main/java/com/google/devtools/cloudtrace/v1/TraceSpan.java
@@ -340,7 +340,7 @@ private SpanKind(int value) {
    *
    * 
    * Identifier for the span. Must be a 64-bit integer other than 0 and
-   * unique within a trace.
+   * unique within a trace. For example, `2205310701640571284`.
    * 

    *
    * fixed64 span_id = 1;
@@ -393,7 +393,7 @@ public com.google.devtools.cloudtrace.v1.TraceSpan.SpanKind getKind() {
    * 
    * Name of the span. Must be less than 128 bytes. The span name is sanitized
    * and displayed in the Stackdriver Trace tool in the
-   * {% dynamic print site_values.console_name %}.
+   * Google Cloud Platform Console.
    * The name may be a method name or some other per-call site name.
    * For the same executable and the same call point, a best practice is
    * to use a consistent name, which makes it easier to correlate
@@ -419,7 +419,7 @@ public java.lang.String getName() {
    * 
    * Name of the span. Must be less than 128 bytes. The span name is sanitized
    * and displayed in the Stackdriver Trace tool in the
-   * {% dynamic print site_values.console_name %}.
+   * Google Cloud Platform Console.
    * The name may be a method name or some other per-call site name.
    * For the same executable and the same call point, a best practice is
    * to use a consistent name, which makes it easier to correlate
@@ -524,10 +524,10 @@ public com.google.protobuf.TimestampOrBuilder getEndTimeOrBuilder() {
    *
    *
    * 
-   * ID of the parent span, if any. Optional.
+   * Optional. ID of the parent span, if any.
    * 

    *
-   * fixed64 parent_span_id = 6;
+   * fixed64 parent_span_id = 6 [(.google.api.field_behavior) = OPTIONAL];
    */
   public long getParentSpanId() {
     return parentSpanId_;
@@ -1221,7 +1221,7 @@ public Builder mergeFrom(
      *
      * 
      * Identifier for the span. Must be a 64-bit integer other than 0 and
-     * unique within a trace.
+     * unique within a trace. For example, `2205310701640571284`.
      * 

      *
      * fixed64 span_id = 1;
@@ -1234,7 +1234,7 @@ public long getSpanId() {
      *
      * 
      * Identifier for the span. Must be a 64-bit integer other than 0 and
-     * unique within a trace.
+     * unique within a trace. For example, `2205310701640571284`.
      * 

      *
      * fixed64 span_id = 1;
@@ -1250,7 +1250,7 @@ public Builder setSpanId(long value) {
      *
      * 
      * Identifier for the span. Must be a 64-bit integer other than 0 and
-     * unique within a trace.
+     * unique within a trace. For example, `2205310701640571284`.
      * 

      *
      * fixed64 span_id = 1;
@@ -1357,7 +1357,7 @@ public Builder clearKind() {
      * 
      * Name of the span. Must be less than 128 bytes. The span name is sanitized
      * and displayed in the Stackdriver Trace tool in the
-     * {% dynamic print site_values.console_name %}.
+     * Google Cloud Platform Console.
      * The name may be a method name or some other per-call site name.
      * For the same executable and the same call point, a best practice is
      * to use a consistent name, which makes it easier to correlate
@@ -1383,7 +1383,7 @@ public java.lang.String getName() {
      * 
      * Name of the span. Must be less than 128 bytes. The span name is sanitized
      * and displayed in the Stackdriver Trace tool in the
-     * {% dynamic print site_values.console_name %}.
+     * Google Cloud Platform Console.
      * The name may be a method name or some other per-call site name.
      * For the same executable and the same call point, a best practice is
      * to use a consistent name, which makes it easier to correlate
@@ -1409,7 +1409,7 @@ public com.google.protobuf.ByteString getNameBytes() {
      * 
      * Name of the span. Must be less than 128 bytes. The span name is sanitized
      * and displayed in the Stackdriver Trace tool in the
-     * {% dynamic print site_values.console_name %}.
+     * Google Cloud Platform Console.
      * The name may be a method name or some other per-call site name.
      * For the same executable and the same call point, a best practice is
      * to use a consistent name, which makes it easier to correlate
@@ -1433,7 +1433,7 @@ public Builder setName(java.lang.String value) {
      * 
      * Name of the span. Must be less than 128 bytes. The span name is sanitized
      * and displayed in the Stackdriver Trace tool in the
-     * {% dynamic print site_values.console_name %}.
+     * Google Cloud Platform Console.
      * The name may be a method name or some other per-call site name.
      * For the same executable and the same call point, a best practice is
      * to use a consistent name, which makes it easier to correlate
@@ -1454,7 +1454,7 @@ public Builder clearName() {
      * 
      * Name of the span. Must be less than 128 bytes. The span name is sanitized
      * and displayed in the Stackdriver Trace tool in the
-     * {% dynamic print site_values.console_name %}.
+     * Google Cloud Platform Console.
      * The name may be a method name or some other per-call site name.
      * For the same executable and the same call point, a best practice is
      * to use a consistent name, which makes it easier to correlate
@@ -1829,10 +1829,10 @@ public com.google.protobuf.TimestampOrBuilder getEndTimeOrBuilder() {
      *
      *
      * 
-     * ID of the parent span, if any. Optional.
+     * Optional. ID of the parent span, if any.
      * 

      *
-     * fixed64 parent_span_id = 6;
+     * fixed64 parent_span_id = 6 [(.google.api.field_behavior) = OPTIONAL];
      */
     public long getParentSpanId() {
       return parentSpanId_;
@@ -1841,10 +1841,10 @@ public long getParentSpanId() {
      *
      *
      * 
-     * ID of the parent span, if any. Optional.
+     * Optional. ID of the parent span, if any.
      * 

      *
-     * fixed64 parent_span_id = 6;
+     * fixed64 parent_span_id = 6 [(.google.api.field_behavior) = OPTIONAL];
      */
     public Builder setParentSpanId(long value) {
 
@@ -1856,10 +1856,10 @@ public Builder setParentSpanId(long value) {
      *
      *
      * 
-     * ID of the parent span, if any. Optional.
+     * Optional. ID of the parent span, if any.
      * 

      *
-     * fixed64 parent_span_id = 6;
+     * fixed64 parent_span_id = 6 [(.google.api.field_behavior) = OPTIONAL];
      */
     public Builder clearParentSpanId() {
 
diff --git a/proto-google-cloud-trace-v1/src/main/java/com/google/devtools/cloudtrace/v1/TraceSpanOrBuilder.java b/proto-google-cloud-trace-v1/src/main/java/com/google/devtools/cloudtrace/v1/TraceSpanOrBuilder.java
index 6905fcb3..0b502748 100644
--- a/proto-google-cloud-trace-v1/src/main/java/com/google/devtools/cloudtrace/v1/TraceSpanOrBuilder.java
+++ b/proto-google-cloud-trace-v1/src/main/java/com/google/devtools/cloudtrace/v1/TraceSpanOrBuilder.java
@@ -28,7 +28,7 @@ public interface TraceSpanOrBuilder
    *
    * 
    * Identifier for the span. Must be a 64-bit integer other than 0 and
-   * unique within a trace.
+   * unique within a trace. For example, `2205310701640571284`.
    * 

    *
    * fixed64 span_id = 1;
@@ -66,7 +66,7 @@ public interface TraceSpanOrBuilder
    * 
    * Name of the span. Must be less than 128 bytes. The span name is sanitized
    * and displayed in the Stackdriver Trace tool in the
-   * {% dynamic print site_values.console_name %}.
+   * Google Cloud Platform Console.
    * The name may be a method name or some other per-call site name.
    * For the same executable and the same call point, a best practice is
    * to use a consistent name, which makes it easier to correlate
@@ -82,7 +82,7 @@ public interface TraceSpanOrBuilder
    * 
    * Name of the span. Must be less than 128 bytes. The span name is sanitized
    * and displayed in the Stackdriver Trace tool in the
-   * {% dynamic print site_values.console_name %}.
+   * Google Cloud Platform Console.
    * The name may be a method name or some other per-call site name.
    * For the same executable and the same call point, a best practice is
    * to use a consistent name, which makes it easier to correlate
@@ -159,10 +159,10 @@ public interface TraceSpanOrBuilder
    *
    *
    * 
-   * ID of the parent span, if any. Optional.
+   * Optional. ID of the parent span, if any.
    * 

    *
-   * fixed64 parent_span_id = 6;
+   * fixed64 parent_span_id = 6 [(.google.api.field_behavior) = OPTIONAL];
    */
   long getParentSpanId();
 
diff --git a/proto-google-cloud-trace-v1/src/main/proto/google/devtools/cloudtrace/v1/trace.proto b/proto-google-cloud-trace-v1/src/main/proto/google/devtools/cloudtrace/v1/trace.proto
index 16af3a6e..00cc14db 100644
--- a/proto-google-cloud-trace-v1/src/main/proto/google/devtools/cloudtrace/v1/trace.proto
+++ b/proto-google-cloud-trace-v1/src/main/proto/google/devtools/cloudtrace/v1/trace.proto
@@ -1,4 +1,4 @@
-// Copyright 2017 Google Inc.
+// Copyright 2019 Google LLC.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -17,6 +17,9 @@ syntax = "proto3";
 package google.devtools.cloudtrace.v1;
 
 import "google/api/annotations.proto";
+import "google/api/client.proto";
+import "google/api/field_behavior.proto";
+import "google/api/resource.proto";
 import "google/protobuf/empty.proto";
 import "google/protobuf/timestamp.proto";
 
@@ -33,11 +36,18 @@ option php_namespace = "Google\\Cloud\\Trace\\V1";
 // timed event which forms a node of the trace tree. Spans for a single trace
 // may span multiple services.
 service TraceService {
+  option (google.api.default_host) = "cloudtrace.googleapis.com";
+  option (google.api.oauth_scopes) =
+      "https://www.googleapis.com/auth/cloud-platform,"
+      "https://www.googleapis.com/auth/trace.append,"
+      "https://www.googleapis.com/auth/trace.readonly";
+
   // Returns of a list of traces that match the specified filter conditions.
   rpc ListTraces(ListTracesRequest) returns (ListTracesResponse) {
     option (google.api.http) = {
       get: "/v1/projects/{project_id}/traces"
     };
+    option (google.api.method_signature) = "project_id";
   }
 
   // Gets a single trace by its ID.
@@ -45,6 +55,7 @@ service TraceService {
     option (google.api.http) = {
       get: "/v1/projects/{project_id}/traces/{trace_id}"
     };
+    option (google.api.method_signature) = "project_id,trace_id";
   }
 
   // Sends new traces to Stackdriver Trace or updates existing traces. If the ID
@@ -57,6 +68,7 @@ service TraceService {
       patch: "/v1/projects/{project_id}/traces"
       body: "traces"
     };
+    option (google.api.method_signature) = "project_id,traces";
   }
 }
 
@@ -68,7 +80,8 @@ message Trace {
   string project_id = 1;
 
   // Globally unique identifier for the trace. This identifier is a 128-bit
-  // numeric value formatted as a 32-byte hex string.
+  // numeric value formatted as a 32-byte hex string. For example,
+  // `382d4f4c6b7bb2f4a972559d9085001d`.
   string trace_id = 2;
 
   // Collection of spans in the trace.
@@ -103,7 +116,7 @@ message TraceSpan {
   }
 
   // Identifier for the span. Must be a 64-bit integer other than 0 and
-  // unique within a trace.
+  // unique within a trace. For example, `2205310701640571284`.
   fixed64 span_id = 1;
 
   // Distinguishes between spans generated in a particular context. For example,
@@ -113,7 +126,7 @@ message TraceSpan {
 
   // Name of the span. Must be less than 128 bytes. The span name is sanitized
   // and displayed in the Stackdriver Trace tool in the
-  // {% dynamic print site_values.console_name %}.
+  // Google Cloud Platform Console.
   // The name may be a method name or some other per-call site name.
   // For the same executable and the same call point, a best practice is
   // to use a consistent name, which makes it easier to correlate
@@ -126,8 +139,8 @@ message TraceSpan {
   // End time of the span in nanoseconds from the UNIX epoch.
   google.protobuf.Timestamp end_time = 5;
 
-  // ID of the parent span, if any. Optional.
-  fixed64 parent_span_id = 6;
+  // Optional. ID of the parent span, if any.
+  fixed64 parent_span_id = 6 [(google.api.field_behavior) = OPTIONAL];
 
   // Collection of labels associated with the span. Label keys must be less than
   // 128 bytes. Label values must be less than 16 kilobytes (10MB for
@@ -189,20 +202,20 @@ message ListTracesRequest {
     COMPLETE = 3;
   }
 
-  // ID of the Cloud project where the trace data is stored.
-  string project_id = 1;
+  // Required. ID of the Cloud project where the trace data is stored.
+  string project_id = 1 [(google.api.field_behavior) = REQUIRED];
 
-  // Type of data returned for traces in the list. Optional. Default is
+  // Optional. Type of data returned for traces in the list. Default is
   // `MINIMAL`.
-  ViewType view = 2;
+  ViewType view = 2 [(google.api.field_behavior) = OPTIONAL];
 
-  // Maximum number of traces to return. If not specified or <= 0, the
+  // Optional. Maximum number of traces to return. If not specified or <= 0, the
   // implementation selects a reasonable value.  The implementation may
-  // return fewer traces than the requested page size. Optional.
-  int32 page_size = 3;
+  // return fewer traces than the requested page size.
+  int32 page_size = 3 [(google.api.field_behavior) = OPTIONAL];
 
   // Token identifying the page of results to return. If provided, use the
-  // value of the `next_page_token` field from a previous request. Optional.
+  // value of the `next_page_token` field from a previous request.
   string page_token = 4;
 
   // Start of the time interval (inclusive) during which the trace data was
@@ -213,7 +226,7 @@ message ListTracesRequest {
   // collected from the application.
   google.protobuf.Timestamp end_time = 6;
 
-  // An optional filter against labels for the request.
+  // Optional. A filter against labels for the request.
   //
   // By default, searches use prefix matching. To specify exact match, prepend
   // a plus symbol (`+`) to the search term.
@@ -243,9 +256,9 @@ message ListTracesRequest {
   //     specified.
   // *   `method:VALUE`: Equivalent to `/http/method:VALUE`.
   // *   `url:VALUE`: Equivalent to `/http/url:VALUE`.
-  string filter = 7;
+  string filter = 7 [(google.api.field_behavior) = OPTIONAL];
 
-  // Field used to sort the returned traces. Optional.
+  // Optional. Field used to sort the returned traces.
   // Can be one of the following:
   //
   // *   `trace_id`
@@ -258,12 +271,12 @@ message ListTracesRequest {
   // (for example, `name desc`).
   //
   // Only one sort field is permitted.
-  string order_by = 8;
+  string order_by = 8 [(google.api.field_behavior) = OPTIONAL];
 }
 
 // The response message for the `ListTraces` method.
 message ListTracesResponse {
-  // List of trace records returned.
+  // List of trace records as specified by the view parameter.
   repeated Trace traces = 1;
 
   // If defined, indicates that there are more traces that match the request
@@ -274,18 +287,18 @@ message ListTracesResponse {
 
 // The request message for the `GetTrace` method.
 message GetTraceRequest {
-  // ID of the Cloud project where the trace data is stored.
-  string project_id = 1;
+  // Required. ID of the Cloud project where the trace data is stored.
+  string project_id = 1 [(google.api.field_behavior) = REQUIRED];
 
-  // ID of the trace to return.
-  string trace_id = 2;
+  // Required. ID of the trace to return.
+  string trace_id = 2 [(google.api.field_behavior) = REQUIRED];
 }
 
 // The request message for the `PatchTraces` method.
 message PatchTracesRequest {
-  // ID of the Cloud project where the trace data is stored.
-  string project_id = 1;
+  // Required. ID of the Cloud project where the trace data is stored.
+  string project_id = 1 [(google.api.field_behavior) = REQUIRED];
 
-  // The body of the message.
-  Traces traces = 2;
+  // Required. The body of the message.
+  Traces traces = 2 [(google.api.field_behavior) = REQUIRED];
 }
diff --git a/proto-google-cloud-trace-v2/src/main/java/com/google/devtools/cloudtrace/v2/BatchWriteSpansRequest.java b/proto-google-cloud-trace-v2/src/main/java/com/google/devtools/cloudtrace/v2/BatchWriteSpansRequest.java
index 64e906b8..5e7cf6b7 100644
--- a/proto-google-cloud-trace-v2/src/main/java/com/google/devtools/cloudtrace/v2/BatchWriteSpansRequest.java
+++ b/proto-google-cloud-trace-v2/src/main/java/com/google/devtools/cloudtrace/v2/BatchWriteSpansRequest.java
@@ -132,7 +132,9 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
    * `projects/[PROJECT_ID]`.
    * 

    *
-   * string name = 1;
+   * 
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * 
    */
   public java.lang.String getName() {
     java.lang.Object ref = name_;
@@ -153,7 +155,9 @@ public java.lang.String getName() {
    * `projects/[PROJECT_ID]`.
    * 

    *
-   * string name = 1;
+   * 
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * 
    */
   public com.google.protobuf.ByteString getNameBytes() {
     java.lang.Object ref = name_;
@@ -173,11 +177,13 @@ public com.google.protobuf.ByteString getNameBytes() {
    *
    *
    * 
-   * A list of new spans. The span names must not match existing
+   * Required. A list of new spans. The span names must not match existing
    * spans, or the results are undefined.
    * 

    *
-   * repeated .google.devtools.cloudtrace.v2.Span spans = 2;
+   * 
+   * repeated .google.devtools.cloudtrace.v2.Span spans = 2 [(.google.api.field_behavior) = REQUIRED];
+   * 
    */
   public java.util.List getSpansList() {
     return spans_;
@@ -186,11 +192,13 @@ public java.util.List getSpansList() {
    *
    *
    * 
-   * A list of new spans. The span names must not match existing
+   * Required. A list of new spans. The span names must not match existing
    * spans, or the results are undefined.
    * 

    *
-   * repeated .google.devtools.cloudtrace.v2.Span spans = 2;
+   * 
+   * repeated .google.devtools.cloudtrace.v2.Span spans = 2 [(.google.api.field_behavior) = REQUIRED];
+   * 
    */
   public java.util.List
       getSpansOrBuilderList() {
@@ -200,11 +208,13 @@ public java.util.List getSpansList() {
    *
    *
    * 
-   * A list of new spans. The span names must not match existing
+   * Required. A list of new spans. The span names must not match existing
    * spans, or the results are undefined.
    * 

    *
-   * repeated .google.devtools.cloudtrace.v2.Span spans = 2;
+   * 
+   * repeated .google.devtools.cloudtrace.v2.Span spans = 2 [(.google.api.field_behavior) = REQUIRED];
+   * 
    */
   public int getSpansCount() {
     return spans_.size();
@@ -213,11 +223,13 @@ public int getSpansCount() {
    *
    *
    * 
-   * A list of new spans. The span names must not match existing
+   * Required. A list of new spans. The span names must not match existing
    * spans, or the results are undefined.
    * 

    *
-   * repeated .google.devtools.cloudtrace.v2.Span spans = 2;
+   * 
+   * repeated .google.devtools.cloudtrace.v2.Span spans = 2 [(.google.api.field_behavior) = REQUIRED];
+   * 
    */
   public com.google.devtools.cloudtrace.v2.Span getSpans(int index) {
     return spans_.get(index);
@@ -226,11 +238,13 @@ public com.google.devtools.cloudtrace.v2.Span getSpans(int index) {
    *
    *
    * 
-   * A list of new spans. The span names must not match existing
+   * Required. A list of new spans. The span names must not match existing
    * spans, or the results are undefined.
    * 

    *
-   * repeated .google.devtools.cloudtrace.v2.Span spans = 2;
+   * 
+   * repeated .google.devtools.cloudtrace.v2.Span spans = 2 [(.google.api.field_behavior) = REQUIRED];
+   * 
    */
   public com.google.devtools.cloudtrace.v2.SpanOrBuilder getSpansOrBuilder(int index) {
     return spans_.get(index);
@@ -624,7 +638,9 @@ public Builder mergeFrom(
      * `projects/[PROJECT_ID]`.
      * 

      *
-     * string name = 1;
+     * 
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * 
      */
     public java.lang.String getName() {
       java.lang.Object ref = name_;
@@ -645,7 +661,9 @@ public java.lang.String getName() {
      * `projects/[PROJECT_ID]`.
      * 

      *
-     * string name = 1;
+     * 
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * 
      */
     public com.google.protobuf.ByteString getNameBytes() {
       java.lang.Object ref = name_;
@@ -666,7 +684,9 @@ public com.google.protobuf.ByteString getNameBytes() {
      * `projects/[PROJECT_ID]`.
      * 

      *
-     * string name = 1;
+     * 
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * 
      */
     public Builder setName(java.lang.String value) {
       if (value == null) {
@@ -685,7 +705,9 @@ public Builder setName(java.lang.String value) {
      * `projects/[PROJECT_ID]`.
      * 

      *
-     * string name = 1;
+     * 
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * 
      */
     public Builder clearName() {
 
@@ -701,7 +723,9 @@ public Builder clearName() {
      * `projects/[PROJECT_ID]`.
      * 

      *
-     * string name = 1;
+     * 
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * 
      */
     public Builder setNameBytes(com.google.protobuf.ByteString value) {
       if (value == null) {
@@ -734,11 +758,13 @@ private void ensureSpansIsMutable() {
      *
      *
      * 
-     * A list of new spans. The span names must not match existing
+     * Required. A list of new spans. The span names must not match existing
      * spans, or the results are undefined.
      * 

      *
-     * repeated .google.devtools.cloudtrace.v2.Span spans = 2;
+     * 
+     * repeated .google.devtools.cloudtrace.v2.Span spans = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
      */
     public java.util.List getSpansList() {
       if (spansBuilder_ == null) {
@@ -751,11 +777,13 @@ public java.util.List getSpansList() {
      *
      *
      * 
-     * A list of new spans. The span names must not match existing
+     * Required. A list of new spans. The span names must not match existing
      * spans, or the results are undefined.
      * 

      *
-     * repeated .google.devtools.cloudtrace.v2.Span spans = 2;
+     * 
+     * repeated .google.devtools.cloudtrace.v2.Span spans = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
      */
     public int getSpansCount() {
       if (spansBuilder_ == null) {
@@ -768,11 +796,13 @@ public int getSpansCount() {
      *
      *
      * 
-     * A list of new spans. The span names must not match existing
+     * Required. A list of new spans. The span names must not match existing
      * spans, or the results are undefined.
      * 

      *
-     * repeated .google.devtools.cloudtrace.v2.Span spans = 2;
+     * 
+     * repeated .google.devtools.cloudtrace.v2.Span spans = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
      */
     public com.google.devtools.cloudtrace.v2.Span getSpans(int index) {
       if (spansBuilder_ == null) {
@@ -785,11 +815,13 @@ public com.google.devtools.cloudtrace.v2.Span getSpans(int index) {
      *
      *
      * 
-     * A list of new spans. The span names must not match existing
+     * Required. A list of new spans. The span names must not match existing
      * spans, or the results are undefined.
      * 

      *
-     * repeated .google.devtools.cloudtrace.v2.Span spans = 2;
+     * 
+     * repeated .google.devtools.cloudtrace.v2.Span spans = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
      */
     public Builder setSpans(int index, com.google.devtools.cloudtrace.v2.Span value) {
       if (spansBuilder_ == null) {
@@ -808,11 +840,13 @@ public Builder setSpans(int index, com.google.devtools.cloudtrace.v2.Span value)
      *
      *
      * 
-     * A list of new spans. The span names must not match existing
+     * Required. A list of new spans. The span names must not match existing
      * spans, or the results are undefined.
      * 

      *
-     * repeated .google.devtools.cloudtrace.v2.Span spans = 2;
+     * 
+     * repeated .google.devtools.cloudtrace.v2.Span spans = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
      */
     public Builder setSpans(
         int index, com.google.devtools.cloudtrace.v2.Span.Builder builderForValue) {
@@ -829,11 +863,13 @@ public Builder setSpans(
      *
      *
      * 
-     * A list of new spans. The span names must not match existing
+     * Required. A list of new spans. The span names must not match existing
      * spans, or the results are undefined.
      * 

      *
-     * repeated .google.devtools.cloudtrace.v2.Span spans = 2;
+     * 
+     * repeated .google.devtools.cloudtrace.v2.Span spans = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
      */
     public Builder addSpans(com.google.devtools.cloudtrace.v2.Span value) {
       if (spansBuilder_ == null) {
@@ -852,11 +888,13 @@ public Builder addSpans(com.google.devtools.cloudtrace.v2.Span value) {
      *
      *
      * 
-     * A list of new spans. The span names must not match existing
+     * Required. A list of new spans. The span names must not match existing
      * spans, or the results are undefined.
      * 

      *
-     * repeated .google.devtools.cloudtrace.v2.Span spans = 2;
+     * 
+     * repeated .google.devtools.cloudtrace.v2.Span spans = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
      */
     public Builder addSpans(int index, com.google.devtools.cloudtrace.v2.Span value) {
       if (spansBuilder_ == null) {
@@ -875,11 +913,13 @@ public Builder addSpans(int index, com.google.devtools.cloudtrace.v2.Span value)
      *
      *
      * 
-     * A list of new spans. The span names must not match existing
+     * Required. A list of new spans. The span names must not match existing
      * spans, or the results are undefined.
      * 

      *
-     * repeated .google.devtools.cloudtrace.v2.Span spans = 2;
+     * 
+     * repeated .google.devtools.cloudtrace.v2.Span spans = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
      */
     public Builder addSpans(com.google.devtools.cloudtrace.v2.Span.Builder builderForValue) {
       if (spansBuilder_ == null) {
@@ -895,11 +935,13 @@ public Builder addSpans(com.google.devtools.cloudtrace.v2.Span.Builder builderFo
      *
      *
      * 
-     * A list of new spans. The span names must not match existing
+     * Required. A list of new spans. The span names must not match existing
      * spans, or the results are undefined.
      * 

      *
-     * repeated .google.devtools.cloudtrace.v2.Span spans = 2;
+     * 
+     * repeated .google.devtools.cloudtrace.v2.Span spans = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
      */
     public Builder addSpans(
         int index, com.google.devtools.cloudtrace.v2.Span.Builder builderForValue) {
@@ -916,11 +958,13 @@ public Builder addSpans(
      *
      *
      * 
-     * A list of new spans. The span names must not match existing
+     * Required. A list of new spans. The span names must not match existing
      * spans, or the results are undefined.
      * 

      *
-     * repeated .google.devtools.cloudtrace.v2.Span spans = 2;
+     * 
+     * repeated .google.devtools.cloudtrace.v2.Span spans = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
      */
     public Builder addAllSpans(
         java.lang.Iterable values) {
@@ -937,11 +981,13 @@ public Builder addAllSpans(
      *
      *
      * 
-     * A list of new spans. The span names must not match existing
+     * Required. A list of new spans. The span names must not match existing
      * spans, or the results are undefined.
      * 

      *
-     * repeated .google.devtools.cloudtrace.v2.Span spans = 2;
+     * 
+     * repeated .google.devtools.cloudtrace.v2.Span spans = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
      */
     public Builder clearSpans() {
       if (spansBuilder_ == null) {
@@ -957,11 +1003,13 @@ public Builder clearSpans() {
      *
      *
      * 
-     * A list of new spans. The span names must not match existing
+     * Required. A list of new spans. The span names must not match existing
      * spans, or the results are undefined.
      * 

      *
-     * repeated .google.devtools.cloudtrace.v2.Span spans = 2;
+     * 
+     * repeated .google.devtools.cloudtrace.v2.Span spans = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
      */
     public Builder removeSpans(int index) {
       if (spansBuilder_ == null) {
@@ -977,11 +1025,13 @@ public Builder removeSpans(int index) {
      *
      *
      * 
-     * A list of new spans. The span names must not match existing
+     * Required. A list of new spans. The span names must not match existing
      * spans, or the results are undefined.
      * 

      *
-     * repeated .google.devtools.cloudtrace.v2.Span spans = 2;
+     * 
+     * repeated .google.devtools.cloudtrace.v2.Span spans = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
      */
     public com.google.devtools.cloudtrace.v2.Span.Builder getSpansBuilder(int index) {
       return getSpansFieldBuilder().getBuilder(index);
@@ -990,11 +1040,13 @@ public com.google.devtools.cloudtrace.v2.Span.Builder getSpansBuilder(int index)
      *
      *
      * 
-     * A list of new spans. The span names must not match existing
+     * Required. A list of new spans. The span names must not match existing
      * spans, or the results are undefined.
      * 

      *
-     * repeated .google.devtools.cloudtrace.v2.Span spans = 2;
+     * 
+     * repeated .google.devtools.cloudtrace.v2.Span spans = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
      */
     public com.google.devtools.cloudtrace.v2.SpanOrBuilder getSpansOrBuilder(int index) {
       if (spansBuilder_ == null) {
@@ -1007,11 +1059,13 @@ public com.google.devtools.cloudtrace.v2.SpanOrBuilder getSpansOrBuilder(int ind
      *
      *
      * 
-     * A list of new spans. The span names must not match existing
+     * Required. A list of new spans. The span names must not match existing
      * spans, or the results are undefined.
      * 

      *
-     * repeated .google.devtools.cloudtrace.v2.Span spans = 2;
+     * 
+     * repeated .google.devtools.cloudtrace.v2.Span spans = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
      */
     public java.util.List
         getSpansOrBuilderList() {
@@ -1025,11 +1079,13 @@ public com.google.devtools.cloudtrace.v2.SpanOrBuilder getSpansOrBuilder(int ind
      *
      *
      * 
-     * A list of new spans. The span names must not match existing
+     * Required. A list of new spans. The span names must not match existing
      * spans, or the results are undefined.
      * 

      *
-     * repeated .google.devtools.cloudtrace.v2.Span spans = 2;
+     * 
+     * repeated .google.devtools.cloudtrace.v2.Span spans = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
      */
     public com.google.devtools.cloudtrace.v2.Span.Builder addSpansBuilder() {
       return getSpansFieldBuilder()
@@ -1039,11 +1095,13 @@ public com.google.devtools.cloudtrace.v2.Span.Builder addSpansBuilder() {
      *
      *
      * 
-     * A list of new spans. The span names must not match existing
+     * Required. A list of new spans. The span names must not match existing
      * spans, or the results are undefined.
      * 

      *
-     * repeated .google.devtools.cloudtrace.v2.Span spans = 2;
+     * 
+     * repeated .google.devtools.cloudtrace.v2.Span spans = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
      */
     public com.google.devtools.cloudtrace.v2.Span.Builder addSpansBuilder(int index) {
       return getSpansFieldBuilder()
@@ -1053,11 +1111,13 @@ public com.google.devtools.cloudtrace.v2.Span.Builder addSpansBuilder(int index)
      *
      *
      * 
-     * A list of new spans. The span names must not match existing
+     * Required. A list of new spans. The span names must not match existing
      * spans, or the results are undefined.
      * 

      *
-     * repeated .google.devtools.cloudtrace.v2.Span spans = 2;
+     * 
+     * repeated .google.devtools.cloudtrace.v2.Span spans = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
      */
     public java.util.List getSpansBuilderList() {
       return getSpansFieldBuilder().getBuilderList();
diff --git a/proto-google-cloud-trace-v2/src/main/java/com/google/devtools/cloudtrace/v2/BatchWriteSpansRequestOrBuilder.java b/proto-google-cloud-trace-v2/src/main/java/com/google/devtools/cloudtrace/v2/BatchWriteSpansRequestOrBuilder.java
index 6ca9c88d..d534959b 100644
--- a/proto-google-cloud-trace-v2/src/main/java/com/google/devtools/cloudtrace/v2/BatchWriteSpansRequestOrBuilder.java
+++ b/proto-google-cloud-trace-v2/src/main/java/com/google/devtools/cloudtrace/v2/BatchWriteSpansRequestOrBuilder.java
@@ -31,7 +31,9 @@ public interface BatchWriteSpansRequestOrBuilder
    * `projects/[PROJECT_ID]`.
    * 

    *
-   * string name = 1;
+   * 
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * 
    */
   java.lang.String getName();
   /**
@@ -42,7 +44,9 @@ public interface BatchWriteSpansRequestOrBuilder
    * `projects/[PROJECT_ID]`.
    * 

    *
-   * string name = 1;
+   * 
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * 
    */
   com.google.protobuf.ByteString getNameBytes();
 
@@ -50,55 +54,65 @@ public interface BatchWriteSpansRequestOrBuilder
    *
    *
    * 
-   * A list of new spans. The span names must not match existing
+   * Required. A list of new spans. The span names must not match existing
    * spans, or the results are undefined.
    * 

    *
-   * repeated .google.devtools.cloudtrace.v2.Span spans = 2;
+   * 
+   * repeated .google.devtools.cloudtrace.v2.Span spans = 2 [(.google.api.field_behavior) = REQUIRED];
+   * 
    */
   java.util.List getSpansList();
   /**
    *
    *
    * 
-   * A list of new spans. The span names must not match existing
+   * Required. A list of new spans. The span names must not match existing
    * spans, or the results are undefined.
    * 

    *
-   * repeated .google.devtools.cloudtrace.v2.Span spans = 2;
+   * 
+   * repeated .google.devtools.cloudtrace.v2.Span spans = 2 [(.google.api.field_behavior) = REQUIRED];
+   * 
    */
   com.google.devtools.cloudtrace.v2.Span getSpans(int index);
   /**
    *
    *
    * 
-   * A list of new spans. The span names must not match existing
+   * Required. A list of new spans. The span names must not match existing
    * spans, or the results are undefined.
    * 

    *
-   * repeated .google.devtools.cloudtrace.v2.Span spans = 2;
+   * 
+   * repeated .google.devtools.cloudtrace.v2.Span spans = 2 [(.google.api.field_behavior) = REQUIRED];
+   * 
    */
   int getSpansCount();
   /**
    *
    *
    * 
-   * A list of new spans. The span names must not match existing
+   * Required. A list of new spans. The span names must not match existing
    * spans, or the results are undefined.
    * 

    *
-   * repeated .google.devtools.cloudtrace.v2.Span spans = 2;
+   * 
+   * repeated .google.devtools.cloudtrace.v2.Span spans = 2 [(.google.api.field_behavior) = REQUIRED];
+   * 
    */
   java.util.List getSpansOrBuilderList();
   /**
    *
    *
    * 
-   * A list of new spans. The span names must not match existing
+   * Required. A list of new spans. The span names must not match existing
    * spans, or the results are undefined.
    * 

    *
-   * repeated .google.devtools.cloudtrace.v2.Span spans = 2;
+   * 
+   * repeated .google.devtools.cloudtrace.v2.Span spans = 2 [(.google.api.field_behavior) = REQUIRED];
+   * 
    */
   com.google.devtools.cloudtrace.v2.SpanOrBuilder getSpansOrBuilder(int index);
 }
diff --git a/proto-google-cloud-trace-v2/src/main/java/com/google/devtools/cloudtrace/v2/Span.java b/proto-google-cloud-trace-v2/src/main/java/com/google/devtools/cloudtrace/v2/Span.java
index 53a45fe5..db7cc438 100644
--- a/proto-google-cloud-trace-v2/src/main/java/com/google/devtools/cloudtrace/v2/Span.java
+++ b/proto-google-cloud-trace-v2/src/main/java/com/google/devtools/cloudtrace/v2/Span.java
@@ -294,8 +294,8 @@ public interface AttributesOrBuilder
      *
      * 
      * The set of attributes. Each attribute's key can be up to 128 bytes
-     * long. The value can be a string up to 256 bytes, an integer, or the
-     * Boolean values `true` and `false`. For example:
+     * long. The value can be a string up to 256 bytes, a signed 64-bit integer,
+     * or the Boolean values `true` and `false`. For example:
      *     "/instance_id": "my-instance"
      *     "/http/user_agent": ""
      *     "/http/request_bytes": 300
@@ -311,8 +311,8 @@ public interface AttributesOrBuilder
      *
      * 
      * The set of attributes. Each attribute's key can be up to 128 bytes
-     * long. The value can be a string up to 256 bytes, an integer, or the
-     * Boolean values `true` and `false`. For example:
+     * long. The value can be a string up to 256 bytes, a signed 64-bit integer,
+     * or the Boolean values `true` and `false`. For example:
      *     "/instance_id": "my-instance"
      *     "/http/user_agent": ""
      *     "/http/request_bytes": 300
@@ -332,8 +332,8 @@ public interface AttributesOrBuilder
      *
      * 
      * The set of attributes. Each attribute's key can be up to 128 bytes
-     * long. The value can be a string up to 256 bytes, an integer, or the
-     * Boolean values `true` and `false`. For example:
+     * long. The value can be a string up to 256 bytes, a signed 64-bit integer,
+     * or the Boolean values `true` and `false`. For example:
      *     "/instance_id": "my-instance"
      *     "/http/user_agent": ""
      *     "/http/request_bytes": 300
@@ -350,8 +350,8 @@ public interface AttributesOrBuilder
      *
      * 
      * The set of attributes. Each attribute's key can be up to 128 bytes
-     * long. The value can be a string up to 256 bytes, an integer, or the
-     * Boolean values `true` and `false`. For example:
+     * long. The value can be a string up to 256 bytes, a signed 64-bit integer,
+     * or the Boolean values `true` and `false`. For example:
      *     "/instance_id": "my-instance"
      *     "/http/user_agent": ""
      *     "/http/request_bytes": 300
@@ -368,8 +368,8 @@ com.google.devtools.cloudtrace.v2.AttributeValue getAttributeMapOrDefault(
      *
      * 
      * The set of attributes. Each attribute's key can be up to 128 bytes
-     * long. The value can be a string up to 256 bytes, an integer, or the
-     * Boolean values `true` and `false`. For example:
+     * long. The value can be a string up to 256 bytes, a signed 64-bit integer,
+     * or the Boolean values `true` and `false`. For example:
      *     "/instance_id": "my-instance"
      *     "/http/user_agent": ""
      *     "/http/request_bytes": 300
@@ -548,8 +548,8 @@ public int getAttributeMapCount() {
      *
      * 
      * The set of attributes. Each attribute's key can be up to 128 bytes
-     * long. The value can be a string up to 256 bytes, an integer, or the
-     * Boolean values `true` and `false`. For example:
+     * long. The value can be a string up to 256 bytes, a signed 64-bit integer,
+     * or the Boolean values `true` and `false`. For example:
      *     "/instance_id": "my-instance"
      *     "/http/user_agent": ""
      *     "/http/request_bytes": 300
@@ -576,8 +576,8 @@ public boolean containsAttributeMap(java.lang.String key) {
      *
      * 
      * The set of attributes. Each attribute's key can be up to 128 bytes
-     * long. The value can be a string up to 256 bytes, an integer, or the
-     * Boolean values `true` and `false`. For example:
+     * long. The value can be a string up to 256 bytes, a signed 64-bit integer,
+     * or the Boolean values `true` and `false`. For example:
      *     "/instance_id": "my-instance"
      *     "/http/user_agent": ""
      *     "/http/request_bytes": 300
@@ -596,8 +596,8 @@ public boolean containsAttributeMap(java.lang.String key) {
      *
      * 
      * The set of attributes. Each attribute's key can be up to 128 bytes
-     * long. The value can be a string up to 256 bytes, an integer, or the
-     * Boolean values `true` and `false`. For example:
+     * long. The value can be a string up to 256 bytes, a signed 64-bit integer,
+     * or the Boolean values `true` and `false`. For example:
      *     "/instance_id": "my-instance"
      *     "/http/user_agent": ""
      *     "/http/request_bytes": 300
@@ -621,8 +621,8 @@ public com.google.devtools.cloudtrace.v2.AttributeValue getAttributeMapOrDefault
      *
      * 
      * The set of attributes. Each attribute's key can be up to 128 bytes
-     * long. The value can be a string up to 256 bytes, an integer, or the
-     * Boolean values `true` and `false`. For example:
+     * long. The value can be a string up to 256 bytes, a signed 64-bit integer,
+     * or the Boolean values `true` and `false`. For example:
      *     "/instance_id": "my-instance"
      *     "/http/user_agent": ""
      *     "/http/request_bytes": 300
@@ -1068,8 +1068,8 @@ public int getAttributeMapCount() {
        *
        * 
        * The set of attributes. Each attribute's key can be up to 128 bytes
-       * long. The value can be a string up to 256 bytes, an integer, or the
-       * Boolean values `true` and `false`. For example:
+       * long. The value can be a string up to 256 bytes, a signed 64-bit integer,
+       * or the Boolean values `true` and `false`. For example:
        *     "/instance_id": "my-instance"
        *     "/http/user_agent": ""
        *     "/http/request_bytes": 300
@@ -1096,8 +1096,8 @@ public boolean containsAttributeMap(java.lang.String key) {
        *
        * 
        * The set of attributes. Each attribute's key can be up to 128 bytes
-       * long. The value can be a string up to 256 bytes, an integer, or the
-       * Boolean values `true` and `false`. For example:
+       * long. The value can be a string up to 256 bytes, a signed 64-bit integer,
+       * or the Boolean values `true` and `false`. For example:
        *     "/instance_id": "my-instance"
        *     "/http/user_agent": ""
        *     "/http/request_bytes": 300
@@ -1116,8 +1116,8 @@ public boolean containsAttributeMap(java.lang.String key) {
        *
        * 
        * The set of attributes. Each attribute's key can be up to 128 bytes
-       * long. The value can be a string up to 256 bytes, an integer, or the
-       * Boolean values `true` and `false`. For example:
+       * long. The value can be a string up to 256 bytes, a signed 64-bit integer,
+       * or the Boolean values `true` and `false`. For example:
        *     "/instance_id": "my-instance"
        *     "/http/user_agent": ""
        *     "/http/request_bytes": 300
@@ -1141,8 +1141,8 @@ public com.google.devtools.cloudtrace.v2.AttributeValue getAttributeMapOrDefault
        *
        * 
        * The set of attributes. Each attribute's key can be up to 128 bytes
-       * long. The value can be a string up to 256 bytes, an integer, or the
-       * Boolean values `true` and `false`. For example:
+       * long. The value can be a string up to 256 bytes, a signed 64-bit integer,
+       * or the Boolean values `true` and `false`. For example:
        *     "/instance_id": "my-instance"
        *     "/http/user_agent": ""
        *     "/http/request_bytes": 300
@@ -1174,8 +1174,8 @@ public Builder clearAttributeMap() {
        *
        * 
        * The set of attributes. Each attribute's key can be up to 128 bytes
-       * long. The value can be a string up to 256 bytes, an integer, or the
-       * Boolean values `true` and `false`. For example:
+       * long. The value can be a string up to 256 bytes, a signed 64-bit integer,
+       * or the Boolean values `true` and `false`. For example:
        *     "/instance_id": "my-instance"
        *     "/http/user_agent": ""
        *     "/http/request_bytes": 300
@@ -1203,8 +1203,8 @@ public Builder removeAttributeMap(java.lang.String key) {
        *
        * 
        * The set of attributes. Each attribute's key can be up to 128 bytes
-       * long. The value can be a string up to 256 bytes, an integer, or the
-       * Boolean values `true` and `false`. For example:
+       * long. The value can be a string up to 256 bytes, a signed 64-bit integer,
+       * or the Boolean values `true` and `false`. For example:
        *     "/instance_id": "my-instance"
        *     "/http/user_agent": ""
        *     "/http/request_bytes": 300
@@ -1230,8 +1230,8 @@ public Builder putAttributeMap(
        *
        * 
        * The set of attributes. Each attribute's key can be up to 128 bytes
-       * long. The value can be a string up to 256 bytes, an integer, or the
-       * Boolean values `true` and `false`. For example:
+       * long. The value can be a string up to 256 bytes, a signed 64-bit integer,
+       * or the Boolean values `true` and `false`. For example:
        *     "/instance_id": "my-instance"
        *     "/http/user_agent": ""
        *     "/http/request_bytes": 300
@@ -8802,7 +8802,7 @@ public com.google.protobuf.ByteString getParentSpanIdBytes() {
    * 
    * A description of the span's operation (up to 128 bytes).
    * Stackdriver Trace displays the description in the
-   * {% dynamic print site_values.console_name %}.
+   * Google Cloud Platform Console.
    * For example, the display name can be a qualified method name or a file name
    * and a line number where the operation is called. A best practice is to use
    * the same display name within an application and at the same call point.
@@ -8820,7 +8820,7 @@ public boolean hasDisplayName() {
    * 
    * A description of the span's operation (up to 128 bytes).
    * Stackdriver Trace displays the description in the
-   * {% dynamic print site_values.console_name %}.
+   * Google Cloud Platform Console.
    * For example, the display name can be a qualified method name or a file name
    * and a line number where the operation is called. A best practice is to use
    * the same display name within an application and at the same call point.
@@ -8840,7 +8840,7 @@ public com.google.devtools.cloudtrace.v2.TruncatableString getDisplayName() {
    * 
    * A description of the span's operation (up to 128 bytes).
    * Stackdriver Trace displays the description in the
-   * {% dynamic print site_values.console_name %}.
+   * Google Cloud Platform Console.
    * For example, the display name can be a qualified method name or a file name
    * and a line number where the operation is called. A best practice is to use
    * the same display name within an application and at the same call point.
@@ -9119,10 +9119,10 @@ public com.google.devtools.cloudtrace.v2.Span.LinksOrBuilder getLinksOrBuilder()
    *
    *
    * 
-   * An optional final status for this span.
+   * Optional. The final status for this span.
    * 

    *
-   * .google.rpc.Status status = 11;
+   * .google.rpc.Status status = 11 [(.google.api.field_behavior) = OPTIONAL];
    */
   public boolean hasStatus() {
     return status_ != null;
@@ -9131,10 +9131,10 @@ public boolean hasStatus() {
    *
    *
    * 
-   * An optional final status for this span.
+   * Optional. The final status for this span.
    * 

    *
-   * .google.rpc.Status status = 11;
+   * .google.rpc.Status status = 11 [(.google.api.field_behavior) = OPTIONAL];
    */
   public com.google.rpc.Status getStatus() {
     return status_ == null ? com.google.rpc.Status.getDefaultInstance() : status_;
@@ -9143,10 +9143,10 @@ public com.google.rpc.Status getStatus() {
    *
    *
    * 
-   * An optional final status for this span.
+   * Optional. The final status for this span.
    * 

    *
-   * .google.rpc.Status status = 11;
+   * .google.rpc.Status status = 11 [(.google.api.field_behavior) = OPTIONAL];
    */
   public com.google.rpc.StatusOrBuilder getStatusOrBuilder() {
     return getStatus();
@@ -9158,13 +9158,15 @@ public com.google.rpc.StatusOrBuilder getStatusOrBuilder() {
    *
    *
    * 
-   * (Optional) Set this parameter to indicate whether this span is in
+   * Optional. Set this parameter to indicate whether this span is in
    * the same process as its parent. If you do not set this parameter,
    * Stackdriver Trace is unable to take advantage of this helpful
    * information.
    * 

    *
-   * .google.protobuf.BoolValue same_process_as_parent_span = 12;
+   * 
+   * .google.protobuf.BoolValue same_process_as_parent_span = 12 [(.google.api.field_behavior) = OPTIONAL];
+   * 
    */
   public boolean hasSameProcessAsParentSpan() {
     return sameProcessAsParentSpan_ != null;
@@ -9173,13 +9175,15 @@ public boolean hasSameProcessAsParentSpan() {
    *
    *
    * 
-   * (Optional) Set this parameter to indicate whether this span is in
+   * Optional. Set this parameter to indicate whether this span is in
    * the same process as its parent. If you do not set this parameter,
    * Stackdriver Trace is unable to take advantage of this helpful
    * information.
    * 

    *
-   * .google.protobuf.BoolValue same_process_as_parent_span = 12;
+   * 
+   * .google.protobuf.BoolValue same_process_as_parent_span = 12 [(.google.api.field_behavior) = OPTIONAL];
+   * 
    */
   public com.google.protobuf.BoolValue getSameProcessAsParentSpan() {
     return sameProcessAsParentSpan_ == null
@@ -9190,13 +9194,15 @@ public com.google.protobuf.BoolValue getSameProcessAsParentSpan() {
    *
    *
    * 
-   * (Optional) Set this parameter to indicate whether this span is in
+   * Optional. Set this parameter to indicate whether this span is in
    * the same process as its parent. If you do not set this parameter,
    * Stackdriver Trace is unable to take advantage of this helpful
    * information.
    * 

    *
-   * .google.protobuf.BoolValue same_process_as_parent_span = 12;
+   * 
+   * .google.protobuf.BoolValue same_process_as_parent_span = 12 [(.google.api.field_behavior) = OPTIONAL];
+   * 
    */
   public com.google.protobuf.BoolValueOrBuilder getSameProcessAsParentSpanOrBuilder() {
     return getSameProcessAsParentSpan();
@@ -9208,11 +9214,13 @@ public com.google.protobuf.BoolValueOrBuilder getSameProcessAsParentSpanOrBuilde
    *
    *
    * 
-   * An optional number of child spans that were generated while this span
+   * Optional. The number of child spans that were generated while this span
    * was active. If set, allows implementation to detect missing child spans.
    * 

    *
-   * .google.protobuf.Int32Value child_span_count = 13;
+   * 
+   * .google.protobuf.Int32Value child_span_count = 13 [(.google.api.field_behavior) = OPTIONAL];
+   * 
    */
   public boolean hasChildSpanCount() {
     return childSpanCount_ != null;
@@ -9221,11 +9229,13 @@ public boolean hasChildSpanCount() {
    *
    *
    * 
-   * An optional number of child spans that were generated while this span
+   * Optional. The number of child spans that were generated while this span
    * was active. If set, allows implementation to detect missing child spans.
    * 

    *
-   * .google.protobuf.Int32Value child_span_count = 13;
+   * 
+   * .google.protobuf.Int32Value child_span_count = 13 [(.google.api.field_behavior) = OPTIONAL];
+   * 
    */
   public com.google.protobuf.Int32Value getChildSpanCount() {
     return childSpanCount_ == null
@@ -9236,11 +9246,13 @@ public com.google.protobuf.Int32Value getChildSpanCount() {
    *
    *
    * 
-   * An optional number of child spans that were generated while this span
+   * Optional. The number of child spans that were generated while this span
    * was active. If set, allows implementation to detect missing child spans.
    * 

    *
-   * .google.protobuf.Int32Value child_span_count = 13;
+   * 
+   * .google.protobuf.Int32Value child_span_count = 13 [(.google.api.field_behavior) = OPTIONAL];
+   * 
    */
   public com.google.protobuf.Int32ValueOrBuilder getChildSpanCountOrBuilder() {
     return getChildSpanCount();
@@ -10204,7 +10216,7 @@ public Builder setParentSpanIdBytes(com.google.protobuf.ByteString value) {
      * 
      * A description of the span's operation (up to 128 bytes).
      * Stackdriver Trace displays the description in the
-     * {% dynamic print site_values.console_name %}.
+     * Google Cloud Platform Console.
      * For example, the display name can be a qualified method name or a file name
      * and a line number where the operation is called. A best practice is to use
      * the same display name within an application and at the same call point.
@@ -10222,7 +10234,7 @@ public boolean hasDisplayName() {
      * 
      * A description of the span's operation (up to 128 bytes).
      * Stackdriver Trace displays the description in the
-     * {% dynamic print site_values.console_name %}.
+     * Google Cloud Platform Console.
      * For example, the display name can be a qualified method name or a file name
      * and a line number where the operation is called. A best practice is to use
      * the same display name within an application and at the same call point.
@@ -10246,7 +10258,7 @@ public com.google.devtools.cloudtrace.v2.TruncatableString getDisplayName() {
      * 
      * A description of the span's operation (up to 128 bytes).
      * Stackdriver Trace displays the description in the
-     * {% dynamic print site_values.console_name %}.
+     * Google Cloud Platform Console.
      * For example, the display name can be a qualified method name or a file name
      * and a line number where the operation is called. A best practice is to use
      * the same display name within an application and at the same call point.
@@ -10274,7 +10286,7 @@ public Builder setDisplayName(com.google.devtools.cloudtrace.v2.TruncatableStrin
      * 
      * A description of the span's operation (up to 128 bytes).
      * Stackdriver Trace displays the description in the
-     * {% dynamic print site_values.console_name %}.
+     * Google Cloud Platform Console.
      * For example, the display name can be a qualified method name or a file name
      * and a line number where the operation is called. A best practice is to use
      * the same display name within an application and at the same call point.
@@ -10300,7 +10312,7 @@ public Builder setDisplayName(
      * 
      * A description of the span's operation (up to 128 bytes).
      * Stackdriver Trace displays the description in the
-     * {% dynamic print site_values.console_name %}.
+     * Google Cloud Platform Console.
      * For example, the display name can be a qualified method name or a file name
      * and a line number where the operation is called. A best practice is to use
      * the same display name within an application and at the same call point.
@@ -10332,7 +10344,7 @@ public Builder mergeDisplayName(com.google.devtools.cloudtrace.v2.TruncatableStr
      * 
      * A description of the span's operation (up to 128 bytes).
      * Stackdriver Trace displays the description in the
-     * {% dynamic print site_values.console_name %}.
+     * Google Cloud Platform Console.
      * For example, the display name can be a qualified method name or a file name
      * and a line number where the operation is called. A best practice is to use
      * the same display name within an application and at the same call point.
@@ -10358,7 +10370,7 @@ public Builder clearDisplayName() {
      * 
      * A description of the span's operation (up to 128 bytes).
      * Stackdriver Trace displays the description in the
-     * {% dynamic print site_values.console_name %}.
+     * Google Cloud Platform Console.
      * For example, the display name can be a qualified method name or a file name
      * and a line number where the operation is called. A best practice is to use
      * the same display name within an application and at the same call point.
@@ -10378,7 +10390,7 @@ public com.google.devtools.cloudtrace.v2.TruncatableString.Builder getDisplayNam
      * 
      * A description of the span's operation (up to 128 bytes).
      * Stackdriver Trace displays the description in the
-     * {% dynamic print site_values.console_name %}.
+     * Google Cloud Platform Console.
      * For example, the display name can be a qualified method name or a file name
      * and a line number where the operation is called. A best practice is to use
      * the same display name within an application and at the same call point.
@@ -10402,7 +10414,7 @@ public com.google.devtools.cloudtrace.v2.TruncatableStringOrBuilder getDisplayNa
      * 
      * A description of the span's operation (up to 128 bytes).
      * Stackdriver Trace displays the description in the
-     * {% dynamic print site_values.console_name %}.
+     * Google Cloud Platform Console.
      * For example, the display name can be a qualified method name or a file name
      * and a line number where the operation is called. A best practice is to use
      * the same display name within an application and at the same call point.
@@ -11567,10 +11579,10 @@ public com.google.devtools.cloudtrace.v2.Span.LinksOrBuilder getLinksOrBuilder()
      *
      *
      * 
-     * An optional final status for this span.
+     * Optional. The final status for this span.
      * 

      *
-     * .google.rpc.Status status = 11;
+     * .google.rpc.Status status = 11 [(.google.api.field_behavior) = OPTIONAL];
      */
     public boolean hasStatus() {
       return statusBuilder_ != null || status_ != null;
@@ -11579,10 +11591,10 @@ public boolean hasStatus() {
      *
      *
      * 
-     * An optional final status for this span.
+     * Optional. The final status for this span.
      * 

      *
-     * .google.rpc.Status status = 11;
+     * .google.rpc.Status status = 11 [(.google.api.field_behavior) = OPTIONAL];
      */
     public com.google.rpc.Status getStatus() {
       if (statusBuilder_ == null) {
@@ -11595,10 +11607,10 @@ public com.google.rpc.Status getStatus() {
      *
      *
      * 
-     * An optional final status for this span.
+     * Optional. The final status for this span.
      * 

      *
-     * .google.rpc.Status status = 11;
+     * .google.rpc.Status status = 11 [(.google.api.field_behavior) = OPTIONAL];
      */
     public Builder setStatus(com.google.rpc.Status value) {
       if (statusBuilder_ == null) {
@@ -11617,10 +11629,10 @@ public Builder setStatus(com.google.rpc.Status value) {
      *
      *
      * 
-     * An optional final status for this span.
+     * Optional. The final status for this span.
      * 

      *
-     * .google.rpc.Status status = 11;
+     * .google.rpc.Status status = 11 [(.google.api.field_behavior) = OPTIONAL];
      */
     public Builder setStatus(com.google.rpc.Status.Builder builderForValue) {
       if (statusBuilder_ == null) {
@@ -11636,10 +11648,10 @@ public Builder setStatus(com.google.rpc.Status.Builder builderForValue) {
      *
      *
      * 
-     * An optional final status for this span.
+     * Optional. The final status for this span.
      * 

      *
-     * .google.rpc.Status status = 11;
+     * .google.rpc.Status status = 11 [(.google.api.field_behavior) = OPTIONAL];
      */
     public Builder mergeStatus(com.google.rpc.Status value) {
       if (statusBuilder_ == null) {
@@ -11659,10 +11671,10 @@ public Builder mergeStatus(com.google.rpc.Status value) {
      *
      *
      * 
-     * An optional final status for this span.
+     * Optional. The final status for this span.
      * 

      *
-     * .google.rpc.Status status = 11;
+     * .google.rpc.Status status = 11 [(.google.api.field_behavior) = OPTIONAL];
      */
     public Builder clearStatus() {
       if (statusBuilder_ == null) {
@@ -11679,10 +11691,10 @@ public Builder clearStatus() {
      *
      *
      * 
-     * An optional final status for this span.
+     * Optional. The final status for this span.
      * 

      *
-     * .google.rpc.Status status = 11;
+     * .google.rpc.Status status = 11 [(.google.api.field_behavior) = OPTIONAL];
      */
     public com.google.rpc.Status.Builder getStatusBuilder() {
 
@@ -11693,10 +11705,10 @@ public com.google.rpc.Status.Builder getStatusBuilder() {
      *
      *
      * 
-     * An optional final status for this span.
+     * Optional. The final status for this span.
      * 

      *
-     * .google.rpc.Status status = 11;
+     * .google.rpc.Status status = 11 [(.google.api.field_behavior) = OPTIONAL];
      */
     public com.google.rpc.StatusOrBuilder getStatusOrBuilder() {
       if (statusBuilder_ != null) {
@@ -11709,10 +11721,10 @@ public com.google.rpc.StatusOrBuilder getStatusOrBuilder() {
      *
      *
      * 
-     * An optional final status for this span.
+     * Optional. The final status for this span.
      * 

      *
-     * .google.rpc.Status status = 11;
+     * .google.rpc.Status status = 11 [(.google.api.field_behavior) = OPTIONAL];
      */
     private com.google.protobuf.SingleFieldBuilderV3<
             com.google.rpc.Status, com.google.rpc.Status.Builder, com.google.rpc.StatusOrBuilder>
@@ -11738,13 +11750,15 @@ public com.google.rpc.StatusOrBuilder getStatusOrBuilder() {
      *
      *
      * 
-     * (Optional) Set this parameter to indicate whether this span is in
+     * Optional. Set this parameter to indicate whether this span is in
      * the same process as its parent. If you do not set this parameter,
      * Stackdriver Trace is unable to take advantage of this helpful
      * information.
      * 

      *
-     * .google.protobuf.BoolValue same_process_as_parent_span = 12;
+     * 
+     * .google.protobuf.BoolValue same_process_as_parent_span = 12 [(.google.api.field_behavior) = OPTIONAL];
+     * 
      */
     public boolean hasSameProcessAsParentSpan() {
       return sameProcessAsParentSpanBuilder_ != null || sameProcessAsParentSpan_ != null;
@@ -11753,13 +11767,15 @@ public boolean hasSameProcessAsParentSpan() {
      *
      *
      * 
-     * (Optional) Set this parameter to indicate whether this span is in
+     * Optional. Set this parameter to indicate whether this span is in
      * the same process as its parent. If you do not set this parameter,
      * Stackdriver Trace is unable to take advantage of this helpful
      * information.
      * 

      *
-     * .google.protobuf.BoolValue same_process_as_parent_span = 12;
+     * 
+     * .google.protobuf.BoolValue same_process_as_parent_span = 12 [(.google.api.field_behavior) = OPTIONAL];
+     * 
      */
     public com.google.protobuf.BoolValue getSameProcessAsParentSpan() {
       if (sameProcessAsParentSpanBuilder_ == null) {
@@ -11774,13 +11790,15 @@ public com.google.protobuf.BoolValue getSameProcessAsParentSpan() {
      *
      *
      * 
-     * (Optional) Set this parameter to indicate whether this span is in
+     * Optional. Set this parameter to indicate whether this span is in
      * the same process as its parent. If you do not set this parameter,
      * Stackdriver Trace is unable to take advantage of this helpful
      * information.
      * 

      *
-     * .google.protobuf.BoolValue same_process_as_parent_span = 12;
+     * 
+     * .google.protobuf.BoolValue same_process_as_parent_span = 12 [(.google.api.field_behavior) = OPTIONAL];
+     * 
      */
     public Builder setSameProcessAsParentSpan(com.google.protobuf.BoolValue value) {
       if (sameProcessAsParentSpanBuilder_ == null) {
@@ -11799,13 +11817,15 @@ public Builder setSameProcessAsParentSpan(com.google.protobuf.BoolValue value) {
      *
      *
      * 
-     * (Optional) Set this parameter to indicate whether this span is in
+     * Optional. Set this parameter to indicate whether this span is in
      * the same process as its parent. If you do not set this parameter,
      * Stackdriver Trace is unable to take advantage of this helpful
      * information.
      * 

      *
-     * .google.protobuf.BoolValue same_process_as_parent_span = 12;
+     * 
+     * .google.protobuf.BoolValue same_process_as_parent_span = 12 [(.google.api.field_behavior) = OPTIONAL];
+     * 
      */
     public Builder setSameProcessAsParentSpan(
         com.google.protobuf.BoolValue.Builder builderForValue) {
@@ -11822,13 +11842,15 @@ public Builder setSameProcessAsParentSpan(
      *
      *
      * 
-     * (Optional) Set this parameter to indicate whether this span is in
+     * Optional. Set this parameter to indicate whether this span is in
      * the same process as its parent. If you do not set this parameter,
      * Stackdriver Trace is unable to take advantage of this helpful
      * information.
      * 

      *
-     * .google.protobuf.BoolValue same_process_as_parent_span = 12;
+     * 
+     * .google.protobuf.BoolValue same_process_as_parent_span = 12 [(.google.api.field_behavior) = OPTIONAL];
+     * 
      */
     public Builder mergeSameProcessAsParentSpan(com.google.protobuf.BoolValue value) {
       if (sameProcessAsParentSpanBuilder_ == null) {
@@ -11851,13 +11873,15 @@ public Builder mergeSameProcessAsParentSpan(com.google.protobuf.BoolValue value)
      *
      *
      * 
-     * (Optional) Set this parameter to indicate whether this span is in
+     * Optional. Set this parameter to indicate whether this span is in
      * the same process as its parent. If you do not set this parameter,
      * Stackdriver Trace is unable to take advantage of this helpful
      * information.
      * 

      *
-     * .google.protobuf.BoolValue same_process_as_parent_span = 12;
+     * 
+     * .google.protobuf.BoolValue same_process_as_parent_span = 12 [(.google.api.field_behavior) = OPTIONAL];
+     * 
      */
     public Builder clearSameProcessAsParentSpan() {
       if (sameProcessAsParentSpanBuilder_ == null) {
@@ -11874,13 +11898,15 @@ public Builder clearSameProcessAsParentSpan() {
      *
      *
      * 
-     * (Optional) Set this parameter to indicate whether this span is in
+     * Optional. Set this parameter to indicate whether this span is in
      * the same process as its parent. If you do not set this parameter,
      * Stackdriver Trace is unable to take advantage of this helpful
      * information.
      * 

      *
-     * .google.protobuf.BoolValue same_process_as_parent_span = 12;
+     * 
+     * .google.protobuf.BoolValue same_process_as_parent_span = 12 [(.google.api.field_behavior) = OPTIONAL];
+     * 
      */
     public com.google.protobuf.BoolValue.Builder getSameProcessAsParentSpanBuilder() {
 
@@ -11891,13 +11917,15 @@ public com.google.protobuf.BoolValue.Builder getSameProcessAsParentSpanBuilder()
      *
      *
      * 
-     * (Optional) Set this parameter to indicate whether this span is in
+     * Optional. Set this parameter to indicate whether this span is in
      * the same process as its parent. If you do not set this parameter,
      * Stackdriver Trace is unable to take advantage of this helpful
      * information.
      * 

      *
-     * .google.protobuf.BoolValue same_process_as_parent_span = 12;
+     * 
+     * .google.protobuf.BoolValue same_process_as_parent_span = 12 [(.google.api.field_behavior) = OPTIONAL];
+     * 
      */
     public com.google.protobuf.BoolValueOrBuilder getSameProcessAsParentSpanOrBuilder() {
       if (sameProcessAsParentSpanBuilder_ != null) {
@@ -11912,13 +11940,15 @@ public com.google.protobuf.BoolValueOrBuilder getSameProcessAsParentSpanOrBuilde
      *
      *
      * 
-     * (Optional) Set this parameter to indicate whether this span is in
+     * Optional. Set this parameter to indicate whether this span is in
      * the same process as its parent. If you do not set this parameter,
      * Stackdriver Trace is unable to take advantage of this helpful
      * information.
      * 

      *
-     * .google.protobuf.BoolValue same_process_as_parent_span = 12;
+     * 
+     * .google.protobuf.BoolValue same_process_as_parent_span = 12 [(.google.api.field_behavior) = OPTIONAL];
+     * 
      */
     private com.google.protobuf.SingleFieldBuilderV3<
             com.google.protobuf.BoolValue,
@@ -11947,11 +11977,13 @@ public com.google.protobuf.BoolValueOrBuilder getSameProcessAsParentSpanOrBuilde
      *
      *
      * 
-     * An optional number of child spans that were generated while this span
+     * Optional. The number of child spans that were generated while this span
      * was active. If set, allows implementation to detect missing child spans.
      * 

      *
-     * .google.protobuf.Int32Value child_span_count = 13;
+     * 
+     * .google.protobuf.Int32Value child_span_count = 13 [(.google.api.field_behavior) = OPTIONAL];
+     * 
      */
     public boolean hasChildSpanCount() {
       return childSpanCountBuilder_ != null || childSpanCount_ != null;
@@ -11960,11 +11992,13 @@ public boolean hasChildSpanCount() {
      *
      *
      * 
-     * An optional number of child spans that were generated while this span
+     * Optional. The number of child spans that were generated while this span
      * was active. If set, allows implementation to detect missing child spans.
      * 

      *
-     * .google.protobuf.Int32Value child_span_count = 13;
+     * 
+     * .google.protobuf.Int32Value child_span_count = 13 [(.google.api.field_behavior) = OPTIONAL];
+     * 
      */
     public com.google.protobuf.Int32Value getChildSpanCount() {
       if (childSpanCountBuilder_ == null) {
@@ -11979,11 +12013,13 @@ public com.google.protobuf.Int32Value getChildSpanCount() {
      *
      *
      * 
-     * An optional number of child spans that were generated while this span
+     * Optional. The number of child spans that were generated while this span
      * was active. If set, allows implementation to detect missing child spans.
      * 

      *
-     * .google.protobuf.Int32Value child_span_count = 13;
+     * 
+     * .google.protobuf.Int32Value child_span_count = 13 [(.google.api.field_behavior) = OPTIONAL];
+     * 
      */
     public Builder setChildSpanCount(com.google.protobuf.Int32Value value) {
       if (childSpanCountBuilder_ == null) {
@@ -12002,11 +12038,13 @@ public Builder setChildSpanCount(com.google.protobuf.Int32Value value) {
      *
      *
      * 
-     * An optional number of child spans that were generated while this span
+     * Optional. The number of child spans that were generated while this span
      * was active. If set, allows implementation to detect missing child spans.
      * 

      *
-     * .google.protobuf.Int32Value child_span_count = 13;
+     * 
+     * .google.protobuf.Int32Value child_span_count = 13 [(.google.api.field_behavior) = OPTIONAL];
+     * 
      */
     public Builder setChildSpanCount(com.google.protobuf.Int32Value.Builder builderForValue) {
       if (childSpanCountBuilder_ == null) {
@@ -12022,11 +12060,13 @@ public Builder setChildSpanCount(com.google.protobuf.Int32Value.Builder builderF
      *
      *
      * 
-     * An optional number of child spans that were generated while this span
+     * Optional. The number of child spans that were generated while this span
      * was active. If set, allows implementation to detect missing child spans.
      * 

      *
-     * .google.protobuf.Int32Value child_span_count = 13;
+     * 
+     * .google.protobuf.Int32Value child_span_count = 13 [(.google.api.field_behavior) = OPTIONAL];
+     * 
      */
     public Builder mergeChildSpanCount(com.google.protobuf.Int32Value value) {
       if (childSpanCountBuilder_ == null) {
@@ -12049,11 +12089,13 @@ public Builder mergeChildSpanCount(com.google.protobuf.Int32Value value) {
      *
      *
      * 
-     * An optional number of child spans that were generated while this span
+     * Optional. The number of child spans that were generated while this span
      * was active. If set, allows implementation to detect missing child spans.
      * 

      *
-     * .google.protobuf.Int32Value child_span_count = 13;
+     * 
+     * .google.protobuf.Int32Value child_span_count = 13 [(.google.api.field_behavior) = OPTIONAL];
+     * 
      */
     public Builder clearChildSpanCount() {
       if (childSpanCountBuilder_ == null) {
@@ -12070,11 +12112,13 @@ public Builder clearChildSpanCount() {
      *
      *
      * 
-     * An optional number of child spans that were generated while this span
+     * Optional. The number of child spans that were generated while this span
      * was active. If set, allows implementation to detect missing child spans.
      * 

      *
-     * .google.protobuf.Int32Value child_span_count = 13;
+     * 
+     * .google.protobuf.Int32Value child_span_count = 13 [(.google.api.field_behavior) = OPTIONAL];
+     * 
      */
     public com.google.protobuf.Int32Value.Builder getChildSpanCountBuilder() {
 
@@ -12085,11 +12129,13 @@ public com.google.protobuf.Int32Value.Builder getChildSpanCountBuilder() {
      *
      *
      * 
-     * An optional number of child spans that were generated while this span
+     * Optional. The number of child spans that were generated while this span
      * was active. If set, allows implementation to detect missing child spans.
      * 

      *
-     * .google.protobuf.Int32Value child_span_count = 13;
+     * 
+     * .google.protobuf.Int32Value child_span_count = 13 [(.google.api.field_behavior) = OPTIONAL];
+     * 
      */
     public com.google.protobuf.Int32ValueOrBuilder getChildSpanCountOrBuilder() {
       if (childSpanCountBuilder_ != null) {
@@ -12104,11 +12150,13 @@ public com.google.protobuf.Int32ValueOrBuilder getChildSpanCountOrBuilder() {
      *
      *
      * 
-     * An optional number of child spans that were generated while this span
+     * Optional. The number of child spans that were generated while this span
      * was active. If set, allows implementation to detect missing child spans.
      * 

      *
-     * .google.protobuf.Int32Value child_span_count = 13;
+     * 
+     * .google.protobuf.Int32Value child_span_count = 13 [(.google.api.field_behavior) = OPTIONAL];
+     * 
      */
     private com.google.protobuf.SingleFieldBuilderV3<
             com.google.protobuf.Int32Value,
diff --git a/proto-google-cloud-trace-v2/src/main/java/com/google/devtools/cloudtrace/v2/SpanOrBuilder.java b/proto-google-cloud-trace-v2/src/main/java/com/google/devtools/cloudtrace/v2/SpanOrBuilder.java
index 11472811..5003648b 100644
--- a/proto-google-cloud-trace-v2/src/main/java/com/google/devtools/cloudtrace/v2/SpanOrBuilder.java
+++ b/proto-google-cloud-trace-v2/src/main/java/com/google/devtools/cloudtrace/v2/SpanOrBuilder.java
@@ -104,7 +104,7 @@ public interface SpanOrBuilder
    * 
    * A description of the span's operation (up to 128 bytes).
    * Stackdriver Trace displays the description in the
-   * {% dynamic print site_values.console_name %}.
+   * Google Cloud Platform Console.
    * For example, the display name can be a qualified method name or a file name
    * and a line number where the operation is called. A best practice is to use
    * the same display name within an application and at the same call point.
@@ -120,7 +120,7 @@ public interface SpanOrBuilder
    * 
    * A description of the span's operation (up to 128 bytes).
    * Stackdriver Trace displays the description in the
-   * {% dynamic print site_values.console_name %}.
+   * Google Cloud Platform Console.
    * For example, the display name can be a qualified method name or a file name
    * and a line number where the operation is called. A best practice is to use
    * the same display name within an application and at the same call point.
@@ -136,7 +136,7 @@ public interface SpanOrBuilder
    * 
    * A description of the span's operation (up to 128 bytes).
    * Stackdriver Trace displays the description in the
-   * {% dynamic print site_values.console_name %}.
+   * Google Cloud Platform Console.
    * For example, the display name can be a qualified method name or a file name
    * and a line number where the operation is called. A best practice is to use
    * the same display name within an application and at the same call point.
@@ -355,30 +355,30 @@ public interface SpanOrBuilder
    *
    *
    * 
-   * An optional final status for this span.
+   * Optional. The final status for this span.
    * 

    *
-   * .google.rpc.Status status = 11;
+   * .google.rpc.Status status = 11 [(.google.api.field_behavior) = OPTIONAL];
    */
   boolean hasStatus();
   /**
    *
    *
    * 
-   * An optional final status for this span.
+   * Optional. The final status for this span.
    * 

    *
-   * .google.rpc.Status status = 11;
+   * .google.rpc.Status status = 11 [(.google.api.field_behavior) = OPTIONAL];
    */
   com.google.rpc.Status getStatus();
   /**
    *
    *
    * 
-   * An optional final status for this span.
+   * Optional. The final status for this span.
    * 

    *
-   * .google.rpc.Status status = 11;
+   * .google.rpc.Status status = 11 [(.google.api.field_behavior) = OPTIONAL];
    */
   com.google.rpc.StatusOrBuilder getStatusOrBuilder();
 
@@ -386,39 +386,45 @@ public interface SpanOrBuilder
    *
    *
    * 
-   * (Optional) Set this parameter to indicate whether this span is in
+   * Optional. Set this parameter to indicate whether this span is in
    * the same process as its parent. If you do not set this parameter,
    * Stackdriver Trace is unable to take advantage of this helpful
    * information.
    * 

    *
-   * .google.protobuf.BoolValue same_process_as_parent_span = 12;
+   * 
+   * .google.protobuf.BoolValue same_process_as_parent_span = 12 [(.google.api.field_behavior) = OPTIONAL];
+   * 
    */
   boolean hasSameProcessAsParentSpan();
   /**
    *
    *
    * 
-   * (Optional) Set this parameter to indicate whether this span is in
+   * Optional. Set this parameter to indicate whether this span is in
    * the same process as its parent. If you do not set this parameter,
    * Stackdriver Trace is unable to take advantage of this helpful
    * information.
    * 

    *
-   * .google.protobuf.BoolValue same_process_as_parent_span = 12;
+   * 
+   * .google.protobuf.BoolValue same_process_as_parent_span = 12 [(.google.api.field_behavior) = OPTIONAL];
+   * 
    */
   com.google.protobuf.BoolValue getSameProcessAsParentSpan();
   /**
    *
    *
    * 
-   * (Optional) Set this parameter to indicate whether this span is in
+   * Optional. Set this parameter to indicate whether this span is in
    * the same process as its parent. If you do not set this parameter,
    * Stackdriver Trace is unable to take advantage of this helpful
    * information.
    * 

    *
-   * .google.protobuf.BoolValue same_process_as_parent_span = 12;
+   * 
+   * .google.protobuf.BoolValue same_process_as_parent_span = 12 [(.google.api.field_behavior) = OPTIONAL];
+   * 
    */
   com.google.protobuf.BoolValueOrBuilder getSameProcessAsParentSpanOrBuilder();
 
@@ -426,33 +432,39 @@ public interface SpanOrBuilder
    *
    *
    * 
-   * An optional number of child spans that were generated while this span
+   * Optional. The number of child spans that were generated while this span
    * was active. If set, allows implementation to detect missing child spans.
    * 

    *
-   * .google.protobuf.Int32Value child_span_count = 13;
+   * 
+   * .google.protobuf.Int32Value child_span_count = 13 [(.google.api.field_behavior) = OPTIONAL];
+   * 
    */
   boolean hasChildSpanCount();
   /**
    *
    *
    * 
-   * An optional number of child spans that were generated while this span
+   * Optional. The number of child spans that were generated while this span
    * was active. If set, allows implementation to detect missing child spans.
    * 

    *
-   * .google.protobuf.Int32Value child_span_count = 13;
+   * 
+   * .google.protobuf.Int32Value child_span_count = 13 [(.google.api.field_behavior) = OPTIONAL];
+   * 
    */
   com.google.protobuf.Int32Value getChildSpanCount();
   /**
    *
    *
    * 
-   * An optional number of child spans that were generated while this span
+   * Optional. The number of child spans that were generated while this span
    * was active. If set, allows implementation to detect missing child spans.
    * 

    *
-   * .google.protobuf.Int32Value child_span_count = 13;
+   * 
+   * .google.protobuf.Int32Value child_span_count = 13 [(.google.api.field_behavior) = OPTIONAL];
+   * 
    */
   com.google.protobuf.Int32ValueOrBuilder getChildSpanCountOrBuilder();
 }
diff --git a/proto-google-cloud-trace-v2/src/main/java/com/google/devtools/cloudtrace/v2/TraceProto.java b/proto-google-cloud-trace-v2/src/main/java/com/google/devtools/cloudtrace/v2/TraceProto.java
index fbb5c4b0..71901f0d 100644
--- a/proto-google-cloud-trace-v2/src/main/java/com/google/devtools/cloudtrace/v2/TraceProto.java
+++ b/proto-google-cloud-trace-v2/src/main/java/com/google/devtools/cloudtrace/v2/TraceProto.java
@@ -98,89 +98,91 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
     java.lang.String[] descriptorData = {
       "\n)google/devtools/cloudtrace/v2/trace.pr"
           + "oto\022\035google.devtools.cloudtrace.v2\032\034goog"
-          + "le/api/annotations.proto\032\037google/protobu"
-          + "f/timestamp.proto\032\036google/protobuf/wrapp"
-          + "ers.proto\032\027google/rpc/status.proto\"\305\017\n\004S"
-          + "pan\022\014\n\004name\030\001 \001(\t\022\017\n\007span_id\030\002 \001(\t\022\026\n\016pa"
-          + "rent_span_id\030\003 \001(\t\022F\n\014display_name\030\004 \001(\013"
-          + "20.google.devtools.cloudtrace.v2.Truncat"
-          + "ableString\022.\n\nstart_time\030\005 \001(\0132\032.google."
-          + "protobuf.Timestamp\022,\n\010end_time\030\006 \001(\0132\032.g"
-          + "oogle.protobuf.Timestamp\022B\n\nattributes\030\007"
-          + " \001(\0132..google.devtools.cloudtrace.v2.Spa"
-          + "n.Attributes\022>\n\013stack_trace\030\010 \001(\0132).goog"
-          + "le.devtools.cloudtrace.v2.StackTrace\022C\n\013"
-          + "time_events\030\t \001(\0132..google.devtools.clou"
-          + "dtrace.v2.Span.TimeEvents\0228\n\005links\030\n \001(\013"
-          + "2).google.devtools.cloudtrace.v2.Span.Li"
-          + "nks\022\"\n\006status\030\013 \001(\0132\022.google.rpc.Status\022"
-          + "?\n\033same_process_as_parent_span\030\014 \001(\0132\032.g"
-          + "oogle.protobuf.BoolValue\0225\n\020child_span_c"
-          + "ount\030\r \001(\0132\033.google.protobuf.Int32Value\032"
-          + "\353\001\n\nAttributes\022W\n\rattribute_map\030\001 \003(\0132@."
-          + "google.devtools.cloudtrace.v2.Span.Attri"
-          + "butes.AttributeMapEntry\022 \n\030dropped_attri"
-          + "butes_count\030\002 \001(\005\032b\n\021AttributeMapEntry\022\013"
-          + "\n\003key\030\001 \001(\t\022<\n\005value\030\002 \001(\0132-.google.devt"
-          + "ools.cloudtrace.v2.AttributeValue:\0028\001\032\337\004"
-          + "\n\tTimeEvent\022(\n\004time\030\001 \001(\0132\032.google.proto"
-          + "buf.Timestamp\022N\n\nannotation\030\002 \001(\01328.goog"
-          + "le.devtools.cloudtrace.v2.Span.TimeEvent"
-          + ".AnnotationH\000\022S\n\rmessage_event\030\003 \001(\0132:.g"
-          + "oogle.devtools.cloudtrace.v2.Span.TimeEv"
-          + "ent.MessageEventH\000\032\227\001\n\nAnnotation\022E\n\013des"
-          + "cription\030\001 \001(\01320.google.devtools.cloudtr"
-          + "ace.v2.TruncatableString\022B\n\nattributes\030\002"
-          + " \001(\0132..google.devtools.cloudtrace.v2.Spa"
-          + "n.Attributes\032\337\001\n\014MessageEvent\022M\n\004type\030\001 "
-          + "\001(\0162?.google.devtools.cloudtrace.v2.Span"
-          + ".TimeEvent.MessageEvent.Type\022\n\n\002id\030\002 \001(\003"
-          + "\022\037\n\027uncompressed_size_bytes\030\003 \001(\003\022\035\n\025com"
-          + "pressed_size_bytes\030\004 \001(\003\"4\n\004Type\022\024\n\020TYPE"
-          + "_UNSPECIFIED\020\000\022\010\n\004SENT\020\001\022\014\n\010RECEIVED\020\002B\007"
-          + "\n\005value\032\230\001\n\nTimeEvents\022A\n\ntime_event\030\001 \003"
-          + "(\0132-.google.devtools.cloudtrace.v2.Span."
-          + "TimeEvent\022!\n\031dropped_annotations_count\030\002"
-          + " \001(\005\022$\n\034dropped_message_events_count\030\003 \001"
-          + "(\005\032\367\001\n\004Link\022\020\n\010trace_id\030\001 \001(\t\022\017\n\007span_id"
-          + "\030\002 \001(\t\022;\n\004type\030\003 \001(\0162-.google.devtools.c"
-          + "loudtrace.v2.Span.Link.Type\022B\n\nattribute"
-          + "s\030\004 \001(\0132..google.devtools.cloudtrace.v2."
-          + "Span.Attributes\"K\n\004Type\022\024\n\020TYPE_UNSPECIF"
-          + "IED\020\000\022\025\n\021CHILD_LINKED_SPAN\020\001\022\026\n\022PARENT_L"
-          + "INKED_SPAN\020\002\032\\\n\005Links\0226\n\004link\030\001 \003(\0132(.go"
-          + "ogle.devtools.cloudtrace.v2.Span.Link\022\033\n"
-          + "\023dropped_links_count\030\002 \001(\005\"\216\001\n\016Attribute"
-          + "Value\022H\n\014string_value\030\001 \001(\01320.google.dev"
-          + "tools.cloudtrace.v2.TruncatableStringH\000\022"
-          + "\023\n\tint_value\030\002 \001(\003H\000\022\024\n\nbool_value\030\003 \001(\010"
-          + "H\000B\007\n\005value\"\211\005\n\nStackTrace\022K\n\014stack_fram"
-          + "es\030\001 \001(\01325.google.devtools.cloudtrace.v2"
-          + ".StackTrace.StackFrames\022\033\n\023stack_trace_h"
-          + "ash_id\030\002 \001(\003\032\236\003\n\nStackFrame\022G\n\rfunction_"
-          + "name\030\001 \001(\01320.google.devtools.cloudtrace."
-          + "v2.TruncatableString\022P\n\026original_functio"
-          + "n_name\030\002 \001(\01320.google.devtools.cloudtrac"
-          + "e.v2.TruncatableString\022C\n\tfile_name\030\003 \001("
-          + "\01320.google.devtools.cloudtrace.v2.Trunca"
-          + "tableString\022\023\n\013line_number\030\004 \001(\003\022\025\n\rcolu"
-          + "mn_number\030\005 \001(\003\022:\n\013load_module\030\006 \001(\0132%.g"
-          + "oogle.devtools.cloudtrace.v2.Module\022H\n\016s"
-          + "ource_version\030\007 \001(\01320.google.devtools.cl"
-          + "oudtrace.v2.TruncatableString\032p\n\013StackFr"
-          + "ames\022C\n\005frame\030\001 \003(\01324.google.devtools.cl"
-          + "oudtrace.v2.StackTrace.StackFrame\022\034\n\024dro"
-          + "pped_frames_count\030\002 \001(\005\"\216\001\n\006Module\022@\n\006mo"
-          + "dule\030\001 \001(\01320.google.devtools.cloudtrace."
-          + "v2.TruncatableString\022B\n\010build_id\030\002 \001(\01320"
-          + ".google.devtools.cloudtrace.v2.Truncatab"
-          + "leString\"@\n\021TruncatableString\022\r\n\005value\030\001"
-          + " \001(\t\022\034\n\024truncated_byte_count\030\002 \001(\005B\252\001\n!c"
-          + "om.google.devtools.cloudtrace.v2B\nTraceP"
-          + "rotoP\001ZGgoogle.golang.org/genproto/googl"
-          + "eapis/devtools/cloudtrace/v2;cloudtrace\252"
-          + "\002\025Google.Cloud.Trace.V2\312\002\025Google\\Cloud\\T"
-          + "race\\V2b\006proto3"
+          + "le/api/annotations.proto\032\037google/api/fie"
+          + "ld_behavior.proto\032\031google/api/resource.p"
+          + "roto\032\037google/protobuf/timestamp.proto\032\036g"
+          + "oogle/protobuf/wrappers.proto\032\027google/rp"
+          + "c/status.proto\"\324\017\n\004Span\022\014\n\004name\030\001 \001(\t\022\017\n"
+          + "\007span_id\030\002 \001(\t\022\026\n\016parent_span_id\030\003 \001(\t\022F"
+          + "\n\014display_name\030\004 \001(\01320.google.devtools.c"
+          + "loudtrace.v2.TruncatableString\022.\n\nstart_"
+          + "time\030\005 \001(\0132\032.google.protobuf.Timestamp\022,"
+          + "\n\010end_time\030\006 \001(\0132\032.google.protobuf.Times"
+          + "tamp\022B\n\nattributes\030\007 \001(\0132..google.devtoo"
+          + "ls.cloudtrace.v2.Span.Attributes\022>\n\013stac"
+          + "k_trace\030\010 \001(\0132).google.devtools.cloudtra"
+          + "ce.v2.StackTrace\022C\n\013time_events\030\t \001(\0132.."
+          + "google.devtools.cloudtrace.v2.Span.TimeE"
+          + "vents\0228\n\005links\030\n \001(\0132).google.devtools.c"
+          + "loudtrace.v2.Span.Links\022\'\n\006status\030\013 \001(\0132"
+          + "\022.google.rpc.StatusB\003\340A\001\022D\n\033same_process"
+          + "_as_parent_span\030\014 \001(\0132\032.google.protobuf."
+          + "BoolValueB\003\340A\001\022:\n\020child_span_count\030\r \001(\013"
+          + "2\033.google.protobuf.Int32ValueB\003\340A\001\032\353\001\n\nA"
+          + "ttributes\022W\n\rattribute_map\030\001 \003(\0132@.googl"
+          + "e.devtools.cloudtrace.v2.Span.Attributes"
+          + ".AttributeMapEntry\022 \n\030dropped_attributes"
+          + "_count\030\002 \001(\005\032b\n\021AttributeMapEntry\022\013\n\003key"
+          + "\030\001 \001(\t\022<\n\005value\030\002 \001(\0132-.google.devtools."
+          + "cloudtrace.v2.AttributeValue:\0028\001\032\337\004\n\tTim"
+          + "eEvent\022(\n\004time\030\001 \001(\0132\032.google.protobuf.T"
+          + "imestamp\022N\n\nannotation\030\002 \001(\01328.google.de"
+          + "vtools.cloudtrace.v2.Span.TimeEvent.Anno"
+          + "tationH\000\022S\n\rmessage_event\030\003 \001(\0132:.google"
+          + ".devtools.cloudtrace.v2.Span.TimeEvent.M"
+          + "essageEventH\000\032\227\001\n\nAnnotation\022E\n\013descript"
+          + "ion\030\001 \001(\01320.google.devtools.cloudtrace.v"
+          + "2.TruncatableString\022B\n\nattributes\030\002 \001(\0132"
+          + "..google.devtools.cloudtrace.v2.Span.Att"
+          + "ributes\032\337\001\n\014MessageEvent\022M\n\004type\030\001 \001(\0162?"
+          + ".google.devtools.cloudtrace.v2.Span.Time"
+          + "Event.MessageEvent.Type\022\n\n\002id\030\002 \001(\003\022\037\n\027u"
+          + "ncompressed_size_bytes\030\003 \001(\003\022\035\n\025compress"
+          + "ed_size_bytes\030\004 \001(\003\"4\n\004Type\022\024\n\020TYPE_UNSP"
+          + "ECIFIED\020\000\022\010\n\004SENT\020\001\022\014\n\010RECEIVED\020\002B\007\n\005val"
+          + "ue\032\230\001\n\nTimeEvents\022A\n\ntime_event\030\001 \003(\0132-."
+          + "google.devtools.cloudtrace.v2.Span.TimeE"
+          + "vent\022!\n\031dropped_annotations_count\030\002 \001(\005\022"
+          + "$\n\034dropped_message_events_count\030\003 \001(\005\032\367\001"
+          + "\n\004Link\022\020\n\010trace_id\030\001 \001(\t\022\017\n\007span_id\030\002 \001("
+          + "\t\022;\n\004type\030\003 \001(\0162-.google.devtools.cloudt"
+          + "race.v2.Span.Link.Type\022B\n\nattributes\030\004 \001"
+          + "(\0132..google.devtools.cloudtrace.v2.Span."
+          + "Attributes\"K\n\004Type\022\024\n\020TYPE_UNSPECIFIED\020\000"
+          + "\022\025\n\021CHILD_LINKED_SPAN\020\001\022\026\n\022PARENT_LINKED"
+          + "_SPAN\020\002\032\\\n\005Links\0226\n\004link\030\001 \003(\0132(.google."
+          + "devtools.cloudtrace.v2.Span.Link\022\033\n\023drop"
+          + "ped_links_count\030\002 \001(\005\"\216\001\n\016AttributeValue"
+          + "\022H\n\014string_value\030\001 \001(\01320.google.devtools"
+          + ".cloudtrace.v2.TruncatableStringH\000\022\023\n\tin"
+          + "t_value\030\002 \001(\003H\000\022\024\n\nbool_value\030\003 \001(\010H\000B\007\n"
+          + "\005value\"\211\005\n\nStackTrace\022K\n\014stack_frames\030\001 "
+          + "\001(\01325.google.devtools.cloudtrace.v2.Stac"
+          + "kTrace.StackFrames\022\033\n\023stack_trace_hash_i"
+          + "d\030\002 \001(\003\032\236\003\n\nStackFrame\022G\n\rfunction_name\030"
+          + "\001 \001(\01320.google.devtools.cloudtrace.v2.Tr"
+          + "uncatableString\022P\n\026original_function_nam"
+          + "e\030\002 \001(\01320.google.devtools.cloudtrace.v2."
+          + "TruncatableString\022C\n\tfile_name\030\003 \001(\01320.g"
+          + "oogle.devtools.cloudtrace.v2.Truncatable"
+          + "String\022\023\n\013line_number\030\004 \001(\003\022\025\n\rcolumn_nu"
+          + "mber\030\005 \001(\003\022:\n\013load_module\030\006 \001(\0132%.google"
+          + ".devtools.cloudtrace.v2.Module\022H\n\016source"
+          + "_version\030\007 \001(\01320.google.devtools.cloudtr"
+          + "ace.v2.TruncatableString\032p\n\013StackFrames\022"
+          + "C\n\005frame\030\001 \003(\01324.google.devtools.cloudtr"
+          + "ace.v2.StackTrace.StackFrame\022\034\n\024dropped_"
+          + "frames_count\030\002 \001(\005\"\216\001\n\006Module\022@\n\006module\030"
+          + "\001 \001(\01320.google.devtools.cloudtrace.v2.Tr"
+          + "uncatableString\022B\n\010build_id\030\002 \001(\01320.goog"
+          + "le.devtools.cloudtrace.v2.TruncatableStr"
+          + "ing\"@\n\021TruncatableString\022\r\n\005value\030\001 \001(\t\022"
+          + "\034\n\024truncated_byte_count\030\002 \001(\005B\252\001\n!com.go"
+          + "ogle.devtools.cloudtrace.v2B\nTraceProtoP"
+          + "\001ZGgoogle.golang.org/genproto/googleapis"
+          + "/devtools/cloudtrace/v2;cloudtrace\252\002\025Goo"
+          + "gle.Cloud.Trace.V2\312\002\025Google\\Cloud\\Trace\\"
+          + "V2b\006proto3"
     };
     com.google.protobuf.Descriptors.FileDescriptor.InternalDescriptorAssigner assigner =
         new com.google.protobuf.Descriptors.FileDescriptor.InternalDescriptorAssigner() {
@@ -194,6 +196,8 @@ public com.google.protobuf.ExtensionRegistry assignDescriptors(
         descriptorData,
         new com.google.protobuf.Descriptors.FileDescriptor[] {
           com.google.api.AnnotationsProto.getDescriptor(),
+          com.google.api.FieldBehaviorProto.getDescriptor(),
+          com.google.api.ResourceProto.getDescriptor(),
           com.google.protobuf.TimestampProto.getDescriptor(),
           com.google.protobuf.WrappersProto.getDescriptor(),
           com.google.rpc.StatusProto.getDescriptor(),
@@ -343,7 +347,14 @@ public com.google.protobuf.ExtensionRegistry assignDescriptors(
             new java.lang.String[] {
               "Value", "TruncatedByteCount",
             });
+    com.google.protobuf.ExtensionRegistry registry =
+        com.google.protobuf.ExtensionRegistry.newInstance();
+    registry.add(com.google.api.FieldBehaviorProto.fieldBehavior);
+    com.google.protobuf.Descriptors.FileDescriptor.internalUpdateFileDescriptor(
+        descriptor, registry);
     com.google.api.AnnotationsProto.getDescriptor();
+    com.google.api.FieldBehaviorProto.getDescriptor();
+    com.google.api.ResourceProto.getDescriptor();
     com.google.protobuf.TimestampProto.getDescriptor();
     com.google.protobuf.WrappersProto.getDescriptor();
     com.google.rpc.StatusProto.getDescriptor();
diff --git a/proto-google-cloud-trace-v2/src/main/java/com/google/devtools/cloudtrace/v2/TracingProto.java b/proto-google-cloud-trace-v2/src/main/java/com/google/devtools/cloudtrace/v2/TracingProto.java
index b049fbd9..25aa0855 100644
--- a/proto-google-cloud-trace-v2/src/main/java/com/google/devtools/cloudtrace/v2/TracingProto.java
+++ b/proto-google-cloud-trace-v2/src/main/java/com/google/devtools/cloudtrace/v2/TracingProto.java
@@ -42,24 +42,31 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
     java.lang.String[] descriptorData = {
       "\n+google/devtools/cloudtrace/v2/tracing."
           + "proto\022\035google.devtools.cloudtrace.v2\032\034go"
-          + "ogle/api/annotations.proto\032)google/devto"
-          + "ols/cloudtrace/v2/trace.proto\032\033google/pr"
-          + "otobuf/empty.proto\032\037google/protobuf/time"
-          + "stamp.proto\"Z\n\026BatchWriteSpansRequest\022\014\n"
-          + "\004name\030\001 \001(\t\0222\n\005spans\030\002 \003(\0132#.google.devt"
-          + "ools.cloudtrace.v2.Span2\257\002\n\014TraceService"
-          + "\022\224\001\n\017BatchWriteSpans\0225.google.devtools.c"
-          + "loudtrace.v2.BatchWriteSpansRequest\032\026.go"
-          + "ogle.protobuf.Empty\"2\202\323\344\223\002,\"\'/v2/{name=p"
-          + "rojects/*}/traces:batchWrite:\001*\022\207\001\n\nCrea"
-          + "teSpan\022#.google.devtools.cloudtrace.v2.S"
-          + "pan\032#.google.devtools.cloudtrace.v2.Span"
-          + "\"/\202\323\344\223\002)\"$/v2/{name=projects/*/traces/*}"
-          + "/spans:\001*B\254\001\n!com.google.devtools.cloudt"
-          + "race.v2B\014TracingProtoP\001ZGgoogle.golang.o"
-          + "rg/genproto/googleapis/devtools/cloudtra"
-          + "ce/v2;cloudtrace\252\002\025Google.Cloud.Trace.V2"
-          + "\312\002\025Google\\Cloud\\Trace\\V2b\006proto3"
+          + "ogle/api/annotations.proto\032\027google/api/c"
+          + "lient.proto\032\037google/api/field_behavior.p"
+          + "roto\032\031google/api/resource.proto\032)google/"
+          + "devtools/cloudtrace/v2/trace.proto\032\033goog"
+          + "le/protobuf/empty.proto\032\037google/protobuf"
+          + "/timestamp.proto\"\224\001\n\026BatchWriteSpansRequ"
+          + "est\022A\n\004name\030\001 \001(\tB3\340A\002\372A-\n+cloudresource"
+          + "manager.googleapis.com/Project\0227\n\005spans\030"
+          + "\002 \003(\0132#.google.devtools.cloudtrace.v2.Sp"
+          + "anB\003\340A\0022\272\003\n\014TraceService\022\241\001\n\017BatchWriteS"
+          + "pans\0225.google.devtools.cloudtrace.v2.Bat"
+          + "chWriteSpansRequest\032\026.google.protobuf.Em"
+          + "pty\"?\202\323\344\223\002,\"\'/v2/{name=projects/*}/trace"
+          + "s:batchWrite:\001*\332A\nname,spans\022\211\001\n\nCreateS"
+          + "pan\022#.google.devtools.cloudtrace.v2.Span"
+          + "\032#.google.devtools.cloudtrace.v2.Span\"1\202"
+          + "\323\344\223\002+\"&/v2/{name=projects/*/traces/*/spa"
+          + "ns/*}:\001*\032z\312A\031cloudtrace.googleapis.com\322A"
+          + "[https://www.googleapis.com/auth/cloud-p"
+          + "latform,https://www.googleapis.com/auth/"
+          + "trace.appendB\254\001\n!com.google.devtools.clo"
+          + "udtrace.v2B\014TracingProtoP\001ZGgoogle.golan"
+          + "g.org/genproto/googleapis/devtools/cloud"
+          + "trace/v2;cloudtrace\252\002\025Google.Cloud.Trace"
+          + ".V2\312\002\025Google\\Cloud\\Trace\\V2b\006proto3"
     };
     com.google.protobuf.Descriptors.FileDescriptor.InternalDescriptorAssigner assigner =
         new com.google.protobuf.Descriptors.FileDescriptor.InternalDescriptorAssigner() {
@@ -73,6 +80,9 @@ public com.google.protobuf.ExtensionRegistry assignDescriptors(
         descriptorData,
         new com.google.protobuf.Descriptors.FileDescriptor[] {
           com.google.api.AnnotationsProto.getDescriptor(),
+          com.google.api.ClientProto.getDescriptor(),
+          com.google.api.FieldBehaviorProto.getDescriptor(),
+          com.google.api.ResourceProto.getDescriptor(),
           com.google.devtools.cloudtrace.v2.TraceProto.getDescriptor(),
           com.google.protobuf.EmptyProto.getDescriptor(),
           com.google.protobuf.TimestampProto.getDescriptor(),
@@ -88,10 +98,18 @@ public com.google.protobuf.ExtensionRegistry assignDescriptors(
             });
     com.google.protobuf.ExtensionRegistry registry =
         com.google.protobuf.ExtensionRegistry.newInstance();
+    registry.add(com.google.api.ClientProto.defaultHost);
+    registry.add(com.google.api.FieldBehaviorProto.fieldBehavior);
     registry.add(com.google.api.AnnotationsProto.http);
+    registry.add(com.google.api.ClientProto.methodSignature);
+    registry.add(com.google.api.ClientProto.oauthScopes);
+    registry.add(com.google.api.ResourceProto.resourceReference);
     com.google.protobuf.Descriptors.FileDescriptor.internalUpdateFileDescriptor(
         descriptor, registry);
     com.google.api.AnnotationsProto.getDescriptor();
+    com.google.api.ClientProto.getDescriptor();
+    com.google.api.FieldBehaviorProto.getDescriptor();
+    com.google.api.ResourceProto.getDescriptor();
     com.google.devtools.cloudtrace.v2.TraceProto.getDescriptor();
     com.google.protobuf.EmptyProto.getDescriptor();
     com.google.protobuf.TimestampProto.getDescriptor();
diff --git a/proto-google-cloud-trace-v2/src/main/proto/google/devtools/cloudtrace/v2/trace.proto b/proto-google-cloud-trace-v2/src/main/proto/google/devtools/cloudtrace/v2/trace.proto
index d9fbe663..dae55617 100644
--- a/proto-google-cloud-trace-v2/src/main/proto/google/devtools/cloudtrace/v2/trace.proto
+++ b/proto-google-cloud-trace-v2/src/main/proto/google/devtools/cloudtrace/v2/trace.proto
@@ -1,4 +1,4 @@
-// Copyright 2017 Google Inc.
+// Copyright 2019 Google LLC.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -17,6 +17,8 @@ syntax = "proto3";
 package google.devtools.cloudtrace.v2;
 
 import "google/api/annotations.proto";
+import "google/api/field_behavior.proto";
+import "google/api/resource.proto";
 import "google/protobuf/timestamp.proto";
 import "google/protobuf/wrappers.proto";
 import "google/rpc/status.proto";
@@ -38,8 +40,8 @@ message Span {
   // A set of attributes, each in the format `[KEY]:[VALUE]`.
   message Attributes {
     // The set of attributes. Each attribute's key can be up to 128 bytes
-    // long. The value can be a string up to 256 bytes, an integer, or the
-    // Boolean values `true` and `false`. For example:
+    // long. The value can be a string up to 256 bytes, a signed 64-bit integer,
+    // or the Boolean values `true` and `false`. For example:
     //
     //     "/instance_id": "my-instance"
     //     "/http/user_agent": ""
@@ -190,7 +192,7 @@ message Span {
 
   // A description of the span's operation (up to 128 bytes).
   // Stackdriver Trace displays the description in the
-  // {% dynamic print site_values.console_name %}.
+  // Google Cloud Platform Console.
   // For example, the display name can be a qualified method name or a file name
   // and a line number where the operation is called. A best practice is to use
   // the same display name within an application and at the same call point.
@@ -221,18 +223,18 @@ message Span {
   // Links associated with the span. You can have up to 128 links per Span.
   Links links = 10;
 
-  // An optional final status for this span.
-  google.rpc.Status status = 11;
+  // Optional. The final status for this span.
+  google.rpc.Status status = 11 [(google.api.field_behavior) = OPTIONAL];
 
-  // (Optional) Set this parameter to indicate whether this span is in
+  // Optional. Set this parameter to indicate whether this span is in
   // the same process as its parent. If you do not set this parameter,
   // Stackdriver Trace is unable to take advantage of this helpful
   // information.
-  google.protobuf.BoolValue same_process_as_parent_span = 12;
+  google.protobuf.BoolValue same_process_as_parent_span = 12 [(google.api.field_behavior) = OPTIONAL];
 
-  // An optional number of child spans that were generated while this span
+  // Optional. The number of child spans that were generated while this span
   // was active. If set, allows implementation to detect missing child spans.
-  google.protobuf.Int32Value child_span_count = 13;
+  google.protobuf.Int32Value child_span_count = 13 [(google.api.field_behavior) = OPTIONAL];
 }
 
 // The allowed types for [VALUE] in a `[KEY]:[VALUE]` attribute.
diff --git a/proto-google-cloud-trace-v2/src/main/proto/google/devtools/cloudtrace/v2/tracing.proto b/proto-google-cloud-trace-v2/src/main/proto/google/devtools/cloudtrace/v2/tracing.proto
index 2990d460..966a8179 100644
--- a/proto-google-cloud-trace-v2/src/main/proto/google/devtools/cloudtrace/v2/tracing.proto
+++ b/proto-google-cloud-trace-v2/src/main/proto/google/devtools/cloudtrace/v2/tracing.proto
@@ -1,4 +1,4 @@
-// Copyright 2017 Google Inc.
+// Copyright 2019 Google LLC.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -11,12 +11,16 @@
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.
+//
 
 syntax = "proto3";
 
 package google.devtools.cloudtrace.v2;
 
 import "google/api/annotations.proto";
+import "google/api/client.proto";
+import "google/api/field_behavior.proto";
+import "google/api/resource.proto";
 import "google/devtools/cloudtrace/v2/trace.proto";
 import "google/protobuf/empty.proto";
 import "google/protobuf/timestamp.proto";
@@ -34,6 +38,11 @@ option php_namespace = "Google\\Cloud\\Trace\\V2";
 // timed event which forms a node of the trace tree. A single trace may
 // contain span(s) from multiple services.
 service TraceService {
+  option (google.api.default_host) = "cloudtrace.googleapis.com";
+  option (google.api.oauth_scopes) =
+      "https://www.googleapis.com/auth/cloud-platform,"
+      "https://www.googleapis.com/auth/trace.append";
+
   // Sends new spans to new or existing traces. You cannot update
   // existing spans.
   rpc BatchWriteSpans(BatchWriteSpansRequest) returns (google.protobuf.Empty) {
@@ -41,12 +50,13 @@ service TraceService {
       post: "/v2/{name=projects/*}/traces:batchWrite"
       body: "*"
     };
+    option (google.api.method_signature) = "name,spans";
   }
 
   // Creates a new span.
   rpc CreateSpan(Span) returns (Span) {
     option (google.api.http) = {
-      post: "/v2/{name=projects/*/traces/*}/spans"
+      post: "/v2/{name=projects/*/traces/*/spans/*}"
       body: "*"
     };
   }
@@ -56,9 +66,14 @@ service TraceService {
 message BatchWriteSpansRequest {
   // Required. The name of the project where the spans belong. The format is
   // `projects/[PROJECT_ID]`.
-  string name = 1;
+  string name = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      type: "cloudresourcemanager.googleapis.com/Project"
+    }
+  ];
 
-  // A list of new spans. The span names must not match existing
+  // Required. A list of new spans. The span names must not match existing
   // spans, or the results are undefined.
-  repeated Span spans = 2;
+  repeated Span spans = 2 [(google.api.field_behavior) = REQUIRED];
 }
diff --git a/synth.metadata b/synth.metadata
index 542ca404..cb67d172 100644
--- a/synth.metadata
+++ b/synth.metadata
@@ -1,19 +1,19 @@
 {
-  "updateTime": "2019-10-26T07:59:06.847311Z",
+  "updateTime": "2019-11-16T08:42:15.005856Z",
   "sources": [
     {
       "generator": {
         "name": "artman",
-        "version": "0.40.3",
-        "dockerImage": "googleapis/artman@sha256:c805f50525f5f557886c94ab76f56eaa09cb1da58c3ee95111fd34259376621a"
+        "version": "0.41.1",
+        "dockerImage": "googleapis/artman@sha256:545c758c76c3f779037aa259023ec3d1ef2d57d2c8cd00a222cb187d63ceac5e"
       }
     },
     {
       "git": {
         "name": "googleapis",
         "remote": "https://github.com/googleapis/googleapis.git",
-        "sha": "d27a44798506d28e8e6d874bd128da43f45f74c4",
-        "internalRef": "276716410"
+        "sha": "c89394342a9ef70acaf73a6959e04b943fbc817b",
+        "internalRef": "280761373"
       }
     },
     {

From e1420550d4cf40f8103641bfaa66ced8515ba42e Mon Sep 17 00:00:00 2001
From: Renovate Bot 
Date: Mon, 18 Nov 2019 19:13:46 +0100
Subject: [PATCH 2/4] chore(deps): update dependency
 com.google.cloud:google-cloud-shared-config to v0.3.0 (#42)

---
 google-cloud-trace-bom/pom.xml | 2 +-
 pom.xml                        | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/google-cloud-trace-bom/pom.xml b/google-cloud-trace-bom/pom.xml
index 87603a4d..611711c0 100644
--- a/google-cloud-trace-bom/pom.xml
+++ b/google-cloud-trace-bom/pom.xml
@@ -8,7 +8,7 @@
   
     com.google.cloud
     google-cloud-shared-config
-    0.2.1
+    0.3.0
   
 
   Google Cloud Trace BOM
diff --git a/pom.xml b/pom.xml
index 8658cee0..b5458893 100644
--- a/pom.xml
+++ b/pom.xml
@@ -14,7 +14,7 @@
   
     com.google.cloud
     google-cloud-shared-config
-    0.2.1
+    0.3.0
   
 
   

From 9f056b1c3a1ba9e757da50919be8358b64ae004c Mon Sep 17 00:00:00 2001
From: "release-please[bot]"
 <55107282+release-please[bot]@users.noreply.github.com>
Date: Mon, 18 Nov 2019 10:25:07 -0800
Subject: [PATCH 3/4] chore: release 0.109.2-SNAPSHOT (#44)

* updated versions.txt [ci skip]

* updated google-cloud-trace-bom/pom.xml [ci skip]

* updated google-cloud-trace/pom.xml [ci skip]

* updated grpc-google-cloud-trace-v1/pom.xml [ci skip]

* updated grpc-google-cloud-trace-v2/pom.xml [ci skip]

* updated pom.xml [ci skip]

* updated proto-google-cloud-trace-v1/pom.xml [ci skip]

* updated proto-google-cloud-trace-v2/pom.xml [ci skip]
---
 google-cloud-trace-bom/pom.xml      | 14 +++++++-------
 google-cloud-trace/pom.xml          |  4 ++--
 grpc-google-cloud-trace-v1/pom.xml  |  4 ++--
 grpc-google-cloud-trace-v2/pom.xml  |  4 ++--
 pom.xml                             | 10 +++++-----
 proto-google-cloud-trace-v1/pom.xml |  4 ++--
 proto-google-cloud-trace-v2/pom.xml |  4 ++--
 versions.txt                        | 10 +++++-----
 8 files changed, 27 insertions(+), 27 deletions(-)

diff --git a/google-cloud-trace-bom/pom.xml b/google-cloud-trace-bom/pom.xml
index 611711c0..b4faf311 100644
--- a/google-cloud-trace-bom/pom.xml
+++ b/google-cloud-trace-bom/pom.xml
@@ -3,7 +3,7 @@
   4.0.0
   com.google.cloud
   google-cloud-trace-bom
-  0.109.1-beta
+  0.109.2-beta-SNAPSHOT
   pom
   
     com.google.cloud
@@ -63,32 +63,32 @@
       
         com.google.api.grpc
         proto-google-cloud-trace-v1
-        0.74.1
+        0.74.2-SNAPSHOT
       
       
         com.google.api.grpc
         grpc-google-cloud-trace-v1
-        0.74.1
+        0.74.2-SNAPSHOT
       
       
         com.google.api.grpc
         grpc-google-cloud-trace-v2
-        0.74.1
+        0.74.2-SNAPSHOT
       
       
         com.google.api.grpc
         proto-google-cloud-trace-v2
-        0.74.1
+        0.74.2-SNAPSHOT
       
       
         com.google.api.grpc
         proto-google-cloud-trace-v2
-        0.74.1
+        0.74.2-SNAPSHOT
       
       
         com.google.cloud
         google-cloud-trace
-        0.109.1-beta
+        0.109.2-beta-SNAPSHOT
       
     
   
diff --git a/google-cloud-trace/pom.xml b/google-cloud-trace/pom.xml
index e2db5a87..68c7f25c 100644
--- a/google-cloud-trace/pom.xml
+++ b/google-cloud-trace/pom.xml
@@ -3,7 +3,7 @@
   4.0.0
   com.google.cloud
   google-cloud-trace
-  0.109.1-beta
+  0.109.2-beta-SNAPSHOT
   jar
   Google Cloud Trace
   https://github.com/googleapis/google-cloud-java/tree/master/google-cloud-clients/google-cloud-trace
@@ -13,7 +13,7 @@
   
     com.google.cloud
     google-cloud-trace-parent
-    0.109.1-beta
+    0.109.2-beta-SNAPSHOT
   
   
     google-cloud-trace
diff --git a/grpc-google-cloud-trace-v1/pom.xml b/grpc-google-cloud-trace-v1/pom.xml
index 95e6beca..b94773c2 100644
--- a/grpc-google-cloud-trace-v1/pom.xml
+++ b/grpc-google-cloud-trace-v1/pom.xml
@@ -4,13 +4,13 @@
   4.0.0
   com.google.api.grpc
   grpc-google-cloud-trace-v1
-  0.74.1
+  0.74.2-SNAPSHOT
   grpc-google-cloud-trace-v1
   GRPC library for grpc-google-cloud-trace-v1
   
     com.google.cloud
     google-cloud-trace-parent
-    0.109.1-beta
+    0.109.2-beta-SNAPSHOT
   
   
     
diff --git a/grpc-google-cloud-trace-v2/pom.xml b/grpc-google-cloud-trace-v2/pom.xml
index 2b3e2297..a382659e 100644
--- a/grpc-google-cloud-trace-v2/pom.xml
+++ b/grpc-google-cloud-trace-v2/pom.xml
@@ -4,13 +4,13 @@
   4.0.0
   com.google.api.grpc
   grpc-google-cloud-trace-v2
-  0.74.1
+  0.74.2-SNAPSHOT
   grpc-google-cloud-trace-v2
   GRPC library for grpc-google-cloud-trace-v2
   
     com.google.cloud
     google-cloud-trace-parent
-    0.109.1-beta
+    0.109.2-beta-SNAPSHOT
   
   
     
diff --git a/pom.xml b/pom.xml
index b5458893..478b6f94 100644
--- a/pom.xml
+++ b/pom.xml
@@ -4,7 +4,7 @@
   com.google.cloud
   google-cloud-trace-parent
   pom
-  0.109.1-beta
+  0.109.2-beta-SNAPSHOT
   Google Cloud Trace Parent
   https://github.com/googleapis/java-core
   
@@ -169,22 +169,22 @@
       
         com.google.api.grpc
         proto-google-cloud-trace-v1
-        0.74.1
+        0.74.2-SNAPSHOT
       
       
         com.google.api.grpc
         proto-google-cloud-trace-v2
-        0.74.1
+        0.74.2-SNAPSHOT
       
       
         com.google.api.grpc
         grpc-google-cloud-trace-v1
-        0.74.1
+        0.74.2-SNAPSHOT
       
       
         com.google.api.grpc
         grpc-google-cloud-trace-v2
-        0.74.1
+        0.74.2-SNAPSHOT
       
 
       
diff --git a/proto-google-cloud-trace-v1/pom.xml b/proto-google-cloud-trace-v1/pom.xml
index 764ea323..f0b51975 100644
--- a/proto-google-cloud-trace-v1/pom.xml
+++ b/proto-google-cloud-trace-v1/pom.xml
@@ -4,13 +4,13 @@
   4.0.0
   com.google.api.grpc
   proto-google-cloud-trace-v1
-  0.74.1
+  0.74.2-SNAPSHOT
   proto-google-cloud-trace-v1
   PROTO library for proto-google-cloud-trace-v1
   
     com.google.cloud
     google-cloud-trace-parent
-    0.109.1-beta
+    0.109.2-beta-SNAPSHOT
   
   
     
diff --git a/proto-google-cloud-trace-v2/pom.xml b/proto-google-cloud-trace-v2/pom.xml
index a6aad0da..ba0529e1 100644
--- a/proto-google-cloud-trace-v2/pom.xml
+++ b/proto-google-cloud-trace-v2/pom.xml
@@ -4,13 +4,13 @@
   4.0.0
   com.google.api.grpc
   proto-google-cloud-trace-v2
-  0.74.1
+  0.74.2-SNAPSHOT
   proto-google-cloud-trace-v2
   PROTO library for proto-google-cloud-trace-v2
   
     com.google.cloud
     google-cloud-trace-parent
-    0.109.1-beta
+    0.109.2-beta-SNAPSHOT
   
   
     
diff --git a/versions.txt b/versions.txt
index 7eabb642..1da8b0b8 100644
--- a/versions.txt
+++ b/versions.txt
@@ -1,8 +1,8 @@
 # Format:
 # module:released-version:current-version
 
-google-cloud-trace:0.109.1-beta:0.109.1-beta
-grpc-google-cloud-trace-v1:0.74.1:0.74.1
-grpc-google-cloud-trace-v2:0.74.1:0.74.1
-proto-google-cloud-trace-v1:0.74.1:0.74.1
-proto-google-cloud-trace-v2:0.74.1:0.74.1
+google-cloud-trace:0.109.1-beta:0.109.2-beta-SNAPSHOT
+grpc-google-cloud-trace-v1:0.74.1:0.74.2-SNAPSHOT
+grpc-google-cloud-trace-v2:0.74.1:0.74.2-SNAPSHOT
+proto-google-cloud-trace-v1:0.74.1:0.74.2-SNAPSHOT
+proto-google-cloud-trace-v2:0.74.1:0.74.2-SNAPSHOT

From e3d50ec3cf387f1155b4436b7242bc547aed4046 Mon Sep 17 00:00:00 2001
From: "release-please[bot]"
 <55107282+release-please[bot]@users.noreply.github.com>
Date: Mon, 18 Nov 2019 12:49:35 -0800
Subject: [PATCH 4/4] chore: release 0.109.2 (#45)

* updated CHANGELOG.md [ci skip]

* updated README.md [ci skip]

* updated versions.txt [ci skip]

* updated google-cloud-trace/pom.xml [ci skip]

* updated grpc-google-cloud-trace-v1/pom.xml [ci skip]

* updated grpc-google-cloud-trace-v2/pom.xml [ci skip]

* updated proto-google-cloud-trace-v1/pom.xml [ci skip]

* updated proto-google-cloud-trace-v2/pom.xml [ci skip]

* updated google-cloud-trace-bom/pom.xml [ci skip]

* updated pom.xml [ci skip]
---
 CHANGELOG.md                        |  7 +++++++
 README.md                           |  6 +++---
 google-cloud-trace-bom/pom.xml      | 14 +++++++-------
 google-cloud-trace/pom.xml          |  4 ++--
 grpc-google-cloud-trace-v1/pom.xml  |  4 ++--
 grpc-google-cloud-trace-v2/pom.xml  |  4 ++--
 pom.xml                             | 10 +++++-----
 proto-google-cloud-trace-v1/pom.xml |  4 ++--
 proto-google-cloud-trace-v2/pom.xml |  4 ++--
 versions.txt                        | 10 +++++-----
 10 files changed, 37 insertions(+), 30 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8d225cab..5118d539 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+### [0.109.2](https://www.github.com/googleapis/java-trace/compare/v0.109.1...v0.109.2) (2019-11-18)
+
+
+### Documentation
+
+* regenerate generated javadoc ([#43](https://www.github.com/googleapis/java-trace/issues/43)) ([1589f08](https://www.github.com/googleapis/java-trace/commit/1589f08e28b248874663b41cce2ba74e60e4cfba))
+
 ### [0.109.1](https://www.github.com/googleapis/java-trace/compare/v0.109.0...v0.109.1) (2019-11-11)
 
 
diff --git a/README.md b/README.md
index 02161f3a..80cb6f99 100644
--- a/README.md
+++ b/README.md
@@ -36,16 +36,16 @@ If you are using Maven without a BOM, add this to your dependencies.
 
   com.google.cloud
   google-cloud-trace
-  0.109.1-beta
+  0.109.2-beta
 
 ```
 If you are using Gradle, add this to your dependencies
 ```Groovy
-compile 'com.google.cloud:google-cloud-trace:0.109.1-beta'
+compile 'com.google.cloud:google-cloud-trace:0.109.2-beta'
 ```
 If you are using SBT, add this to your dependencies
 ```Scala
-libraryDependencies += "com.google.cloud" % "google-cloud-trace" % "0.109.1-beta"
+libraryDependencies += "com.google.cloud" % "google-cloud-trace" % "0.109.2-beta"
 ```
 [//]: # ({x-version-update-end})
 
diff --git a/google-cloud-trace-bom/pom.xml b/google-cloud-trace-bom/pom.xml
index b4faf311..d3d7d684 100644
--- a/google-cloud-trace-bom/pom.xml
+++ b/google-cloud-trace-bom/pom.xml
@@ -3,7 +3,7 @@
   4.0.0
   com.google.cloud
   google-cloud-trace-bom
-  0.109.2-beta-SNAPSHOT
+  0.109.2-beta
   pom
   
     com.google.cloud
@@ -63,32 +63,32 @@
       
         com.google.api.grpc
         proto-google-cloud-trace-v1
-        0.74.2-SNAPSHOT
+        0.74.2
       
       
         com.google.api.grpc
         grpc-google-cloud-trace-v1
-        0.74.2-SNAPSHOT
+        0.74.2
       
       
         com.google.api.grpc
         grpc-google-cloud-trace-v2
-        0.74.2-SNAPSHOT
+        0.74.2
       
       
         com.google.api.grpc
         proto-google-cloud-trace-v2
-        0.74.2-SNAPSHOT
+        0.74.2
       
       
         com.google.api.grpc
         proto-google-cloud-trace-v2
-        0.74.2-SNAPSHOT
+        0.74.2
       
       
         com.google.cloud
         google-cloud-trace
-        0.109.2-beta-SNAPSHOT
+        0.109.2-beta
       
     
   
diff --git a/google-cloud-trace/pom.xml b/google-cloud-trace/pom.xml
index 68c7f25c..ee7bc535 100644
--- a/google-cloud-trace/pom.xml
+++ b/google-cloud-trace/pom.xml
@@ -3,7 +3,7 @@
   4.0.0
   com.google.cloud
   google-cloud-trace
-  0.109.2-beta-SNAPSHOT
+  0.109.2-beta
   jar
   Google Cloud Trace
   https://github.com/googleapis/google-cloud-java/tree/master/google-cloud-clients/google-cloud-trace
@@ -13,7 +13,7 @@
   
     com.google.cloud
     google-cloud-trace-parent
-    0.109.2-beta-SNAPSHOT
+    0.109.2-beta
   
   
     google-cloud-trace
diff --git a/grpc-google-cloud-trace-v1/pom.xml b/grpc-google-cloud-trace-v1/pom.xml
index b94773c2..f22c9f69 100644
--- a/grpc-google-cloud-trace-v1/pom.xml
+++ b/grpc-google-cloud-trace-v1/pom.xml
@@ -4,13 +4,13 @@
   4.0.0
   com.google.api.grpc
   grpc-google-cloud-trace-v1
-  0.74.2-SNAPSHOT
+  0.74.2
   grpc-google-cloud-trace-v1
   GRPC library for grpc-google-cloud-trace-v1
   
     com.google.cloud
     google-cloud-trace-parent
-    0.109.2-beta-SNAPSHOT
+    0.109.2-beta
   
   
     
diff --git a/grpc-google-cloud-trace-v2/pom.xml b/grpc-google-cloud-trace-v2/pom.xml
index a382659e..b76adb3e 100644
--- a/grpc-google-cloud-trace-v2/pom.xml
+++ b/grpc-google-cloud-trace-v2/pom.xml
@@ -4,13 +4,13 @@
   4.0.0
   com.google.api.grpc
   grpc-google-cloud-trace-v2
-  0.74.2-SNAPSHOT
+  0.74.2
   grpc-google-cloud-trace-v2
   GRPC library for grpc-google-cloud-trace-v2
   
     com.google.cloud
     google-cloud-trace-parent
-    0.109.2-beta-SNAPSHOT
+    0.109.2-beta
   
   
     
diff --git a/pom.xml b/pom.xml
index 478b6f94..9324b4f9 100644
--- a/pom.xml
+++ b/pom.xml
@@ -4,7 +4,7 @@
   com.google.cloud
   google-cloud-trace-parent
   pom
-  0.109.2-beta-SNAPSHOT
+  0.109.2-beta
   Google Cloud Trace Parent
   https://github.com/googleapis/java-core
   
@@ -169,22 +169,22 @@
       
         com.google.api.grpc
         proto-google-cloud-trace-v1
-        0.74.2-SNAPSHOT
+        0.74.2
       
       
         com.google.api.grpc
         proto-google-cloud-trace-v2
-        0.74.2-SNAPSHOT
+        0.74.2
       
       
         com.google.api.grpc
         grpc-google-cloud-trace-v1
-        0.74.2-SNAPSHOT
+        0.74.2
       
       
         com.google.api.grpc
         grpc-google-cloud-trace-v2
-        0.74.2-SNAPSHOT
+        0.74.2
       
 
       
diff --git a/proto-google-cloud-trace-v1/pom.xml b/proto-google-cloud-trace-v1/pom.xml
index f0b51975..0b25a5ad 100644
--- a/proto-google-cloud-trace-v1/pom.xml
+++ b/proto-google-cloud-trace-v1/pom.xml
@@ -4,13 +4,13 @@
   4.0.0
   com.google.api.grpc
   proto-google-cloud-trace-v1
-  0.74.2-SNAPSHOT
+  0.74.2
   proto-google-cloud-trace-v1
   PROTO library for proto-google-cloud-trace-v1
   
     com.google.cloud
     google-cloud-trace-parent
-    0.109.2-beta-SNAPSHOT
+    0.109.2-beta
   
   
     
diff --git a/proto-google-cloud-trace-v2/pom.xml b/proto-google-cloud-trace-v2/pom.xml
index ba0529e1..a2ea4a93 100644
--- a/proto-google-cloud-trace-v2/pom.xml
+++ b/proto-google-cloud-trace-v2/pom.xml
@@ -4,13 +4,13 @@
   4.0.0
   com.google.api.grpc
   proto-google-cloud-trace-v2
-  0.74.2-SNAPSHOT
+  0.74.2
   proto-google-cloud-trace-v2
   PROTO library for proto-google-cloud-trace-v2
   
     com.google.cloud
     google-cloud-trace-parent
-    0.109.2-beta-SNAPSHOT
+    0.109.2-beta
   
   
     
diff --git a/versions.txt b/versions.txt
index 1da8b0b8..567e79c1 100644
--- a/versions.txt
+++ b/versions.txt
@@ -1,8 +1,8 @@
 # Format:
 # module:released-version:current-version
 
-google-cloud-trace:0.109.1-beta:0.109.2-beta-SNAPSHOT
-grpc-google-cloud-trace-v1:0.74.1:0.74.2-SNAPSHOT
-grpc-google-cloud-trace-v2:0.74.1:0.74.2-SNAPSHOT
-proto-google-cloud-trace-v1:0.74.1:0.74.2-SNAPSHOT
-proto-google-cloud-trace-v2:0.74.1:0.74.2-SNAPSHOT
+google-cloud-trace:0.109.2-beta:0.109.2-beta
+grpc-google-cloud-trace-v1:0.74.2:0.74.2
+grpc-google-cloud-trace-v2:0.74.2:0.74.2
+proto-google-cloud-trace-v1:0.74.2:0.74.2
+proto-google-cloud-trace-v2:0.74.2:0.74.2