diff --git a/.github/.OwlBot.lock.yaml b/.github/.OwlBot.lock.yaml
index 2567653c..7d98291c 100644
--- a/.github/.OwlBot.lock.yaml
+++ b/.github/.OwlBot.lock.yaml
@@ -1,3 +1,3 @@
 docker:
   image: gcr.io/cloud-devrel-public-resources/owlbot-python:latest
-  digest: sha256:87eee22d276554e4e52863ec9b1cb6a7245815dfae20439712bf644348215a5a
+  digest: sha256:58f73ba196b5414782605236dd0712a73541b44ff2ff4d3a36ec41092dd6fa5b
diff --git a/.github/CODEOWNERS b/.github/CODEOWNERS
index 1473ae01..3678a0ac 100644
--- a/.github/CODEOWNERS
+++ b/.github/CODEOWNERS
@@ -4,8 +4,9 @@
 # For syntax help see:
 # https://help.github.com/en/github/creating-cloning-and-archiving-repositories/about-code-owners#codeowners-syntax
 
-# The @googleapis/api-bigquery is the default owner for changes in this repo
-*               @googleapis/api-bigquery @googleapis/yoshi-python
 
-# The python-samples-reviewers team is the default owner for samples changes
-/samples/   @googleapis/python-samples-owners @googleapis/api-bigquery @googleapis/yoshi-python
+# @googleapis/yoshi-python and @googleapis/api-bigquery are the default owners for changes in this repo
+*     @googleapis/yoshi-python @googleapis/api-bigquery
+
+# @googleapis/python-samples-owners and @googleapis/api-bigquery are the default owners for samples changes
+/samples/   @googleapis/python-samples-owners @googleapis/api-bigquery
diff --git a/.kokoro/samples/lint/common.cfg b/.kokoro/samples/lint/common.cfg
index e65f99c0..e7ceea32 100644
--- a/.kokoro/samples/lint/common.cfg
+++ b/.kokoro/samples/lint/common.cfg
@@ -31,4 +31,4 @@ gfile_resources: "/bigstore/cloud-devrel-kokoro-resources/python-docs-samples"
 gfile_resources: "/bigstore/cloud-devrel-kokoro-resources/trampoline"
 
 # Use the trampoline script to run in docker.
-build_file: "python-bigquery-reservation/.kokoro/trampoline.sh"
\ No newline at end of file
+build_file: "python-bigquery-reservation/.kokoro/trampoline_v2.sh"
\ No newline at end of file
diff --git a/.kokoro/samples/python3.10/common.cfg b/.kokoro/samples/python3.10/common.cfg
new file mode 100644
index 00000000..56bc6d7f
--- /dev/null
+++ b/.kokoro/samples/python3.10/common.cfg
@@ -0,0 +1,40 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+# Build logs will be here
+action {
+  define_artifacts {
+    regex: "**/*sponge_log.xml"
+  }
+}
+
+# Specify which tests to run
+env_vars: {
+    key: "RUN_TESTS_SESSION"
+    value: "py-3.10"
+}
+
+# Declare build specific Cloud project.
+env_vars: {
+    key: "BUILD_SPECIFIC_GCLOUD_PROJECT"
+    value: "python-docs-samples-tests-310"
+}
+
+env_vars: {
+    key: "TRAMPOLINE_BUILD_FILE"
+    value: "github/python-bigquery-reservation/.kokoro/test-samples.sh"
+}
+
+# Configure the docker image for kokoro-trampoline.
+env_vars: {
+    key: "TRAMPOLINE_IMAGE"
+    value: "gcr.io/cloud-devrel-kokoro-resources/python-samples-testing-docker"
+}
+
+# Download secrets for samples
+gfile_resources: "/bigstore/cloud-devrel-kokoro-resources/python-docs-samples"
+
+# Download trampoline resources.
+gfile_resources: "/bigstore/cloud-devrel-kokoro-resources/trampoline"
+
+# Use the trampoline script to run in docker.
+build_file: "python-bigquery-reservation/.kokoro/trampoline_v2.sh"
\ No newline at end of file
diff --git a/.kokoro/samples/python3.10/continuous.cfg b/.kokoro/samples/python3.10/continuous.cfg
new file mode 100644
index 00000000..a1c8d975
--- /dev/null
+++ b/.kokoro/samples/python3.10/continuous.cfg
@@ -0,0 +1,6 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+env_vars: {
+    key: "INSTALL_LIBRARY_FROM_SOURCE"
+    value: "True"
+}
\ No newline at end of file
diff --git a/.kokoro/samples/python3.10/periodic-head.cfg b/.kokoro/samples/python3.10/periodic-head.cfg
new file mode 100644
index 00000000..2d95161c
--- /dev/null
+++ b/.kokoro/samples/python3.10/periodic-head.cfg
@@ -0,0 +1,11 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+env_vars: {
+    key: "INSTALL_LIBRARY_FROM_SOURCE"
+    value: "True"
+}
+
+env_vars: {
+    key: "TRAMPOLINE_BUILD_FILE"
+    value: "github/python-bigquery-reservation/.kokoro/test-samples-against-head.sh"
+}
diff --git a/.kokoro/samples/python3.10/periodic.cfg b/.kokoro/samples/python3.10/periodic.cfg
new file mode 100644
index 00000000..71cd1e59
--- /dev/null
+++ b/.kokoro/samples/python3.10/periodic.cfg
@@ -0,0 +1,6 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+env_vars: {
+    key: "INSTALL_LIBRARY_FROM_SOURCE"
+    value: "False"
+}
diff --git a/.kokoro/samples/python3.10/presubmit.cfg b/.kokoro/samples/python3.10/presubmit.cfg
new file mode 100644
index 00000000..a1c8d975
--- /dev/null
+++ b/.kokoro/samples/python3.10/presubmit.cfg
@@ -0,0 +1,6 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+env_vars: {
+    key: "INSTALL_LIBRARY_FROM_SOURCE"
+    value: "True"
+}
\ No newline at end of file
diff --git a/.kokoro/samples/python3.6/common.cfg b/.kokoro/samples/python3.6/common.cfg
index 71d3f21d..f859ce4d 100644
--- a/.kokoro/samples/python3.6/common.cfg
+++ b/.kokoro/samples/python3.6/common.cfg
@@ -37,4 +37,4 @@ gfile_resources: "/bigstore/cloud-devrel-kokoro-resources/python-docs-samples"
 gfile_resources: "/bigstore/cloud-devrel-kokoro-resources/trampoline"
 
 # Use the trampoline script to run in docker.
-build_file: "python-bigquery-reservation/.kokoro/trampoline.sh"
\ No newline at end of file
+build_file: "python-bigquery-reservation/.kokoro/trampoline_v2.sh"
\ No newline at end of file
diff --git a/.kokoro/samples/python3.6/periodic.cfg b/.kokoro/samples/python3.6/periodic.cfg
index 50fec964..71cd1e59 100644
--- a/.kokoro/samples/python3.6/periodic.cfg
+++ b/.kokoro/samples/python3.6/periodic.cfg
@@ -3,4 +3,4 @@
 env_vars: {
     key: "INSTALL_LIBRARY_FROM_SOURCE"
     value: "False"
-}
\ No newline at end of file
+}
diff --git a/.kokoro/samples/python3.7/common.cfg b/.kokoro/samples/python3.7/common.cfg
index f3f88f3c..c16e8df1 100644
--- a/.kokoro/samples/python3.7/common.cfg
+++ b/.kokoro/samples/python3.7/common.cfg
@@ -37,4 +37,4 @@ gfile_resources: "/bigstore/cloud-devrel-kokoro-resources/python-docs-samples"
 gfile_resources: "/bigstore/cloud-devrel-kokoro-resources/trampoline"
 
 # Use the trampoline script to run in docker.
-build_file: "python-bigquery-reservation/.kokoro/trampoline.sh"
\ No newline at end of file
+build_file: "python-bigquery-reservation/.kokoro/trampoline_v2.sh"
\ No newline at end of file
diff --git a/.kokoro/samples/python3.7/periodic.cfg b/.kokoro/samples/python3.7/periodic.cfg
index 50fec964..71cd1e59 100644
--- a/.kokoro/samples/python3.7/periodic.cfg
+++ b/.kokoro/samples/python3.7/periodic.cfg
@@ -3,4 +3,4 @@
 env_vars: {
     key: "INSTALL_LIBRARY_FROM_SOURCE"
     value: "False"
-}
\ No newline at end of file
+}
diff --git a/.kokoro/samples/python3.8/common.cfg b/.kokoro/samples/python3.8/common.cfg
index ab5788c1..cb8929fc 100644
--- a/.kokoro/samples/python3.8/common.cfg
+++ b/.kokoro/samples/python3.8/common.cfg
@@ -37,4 +37,4 @@ gfile_resources: "/bigstore/cloud-devrel-kokoro-resources/python-docs-samples"
 gfile_resources: "/bigstore/cloud-devrel-kokoro-resources/trampoline"
 
 # Use the trampoline script to run in docker.
-build_file: "python-bigquery-reservation/.kokoro/trampoline.sh"
\ No newline at end of file
+build_file: "python-bigquery-reservation/.kokoro/trampoline_v2.sh"
\ No newline at end of file
diff --git a/.kokoro/samples/python3.8/periodic.cfg b/.kokoro/samples/python3.8/periodic.cfg
index 50fec964..71cd1e59 100644
--- a/.kokoro/samples/python3.8/periodic.cfg
+++ b/.kokoro/samples/python3.8/periodic.cfg
@@ -3,4 +3,4 @@
 env_vars: {
     key: "INSTALL_LIBRARY_FROM_SOURCE"
     value: "False"
-}
\ No newline at end of file
+}
diff --git a/.kokoro/samples/python3.9/common.cfg b/.kokoro/samples/python3.9/common.cfg
index fb8edcc2..3c5a517f 100644
--- a/.kokoro/samples/python3.9/common.cfg
+++ b/.kokoro/samples/python3.9/common.cfg
@@ -37,4 +37,4 @@ gfile_resources: "/bigstore/cloud-devrel-kokoro-resources/python-docs-samples"
 gfile_resources: "/bigstore/cloud-devrel-kokoro-resources/trampoline"
 
 # Use the trampoline script to run in docker.
-build_file: "python-bigquery-reservation/.kokoro/trampoline.sh"
\ No newline at end of file
+build_file: "python-bigquery-reservation/.kokoro/trampoline_v2.sh"
\ No newline at end of file
diff --git a/.kokoro/samples/python3.9/periodic.cfg b/.kokoro/samples/python3.9/periodic.cfg
index 50fec964..71cd1e59 100644
--- a/.kokoro/samples/python3.9/periodic.cfg
+++ b/.kokoro/samples/python3.9/periodic.cfg
@@ -3,4 +3,4 @@
 env_vars: {
     key: "INSTALL_LIBRARY_FROM_SOURCE"
     value: "False"
-}
\ No newline at end of file
+}
diff --git a/.kokoro/test-samples-against-head.sh b/.kokoro/test-samples-against-head.sh
index ce1646a4..ba3a707b 100755
--- a/.kokoro/test-samples-against-head.sh
+++ b/.kokoro/test-samples-against-head.sh
@@ -23,6 +23,4 @@ set -eo pipefail
 # Enables `**` to include files nested inside sub-folders
 shopt -s globstar
 
-cd github/python-bigquery-reservation
-
 exec .kokoro/test-samples-impl.sh
diff --git a/.kokoro/test-samples.sh b/.kokoro/test-samples.sh
index 3f2514ea..11c042d3 100755
--- a/.kokoro/test-samples.sh
+++ b/.kokoro/test-samples.sh
@@ -24,8 +24,6 @@ set -eo pipefail
 # Enables `**` to include files nested inside sub-folders
 shopt -s globstar
 
-cd github/python-bigquery-reservation
-
 # Run periodic samples tests at latest release
 if [[ $KOKORO_BUILD_ARTIFACTS_SUBDIR = *"periodic"* ]]; then
     # preserving the test runner implementation.
diff --git a/.repo-metadata.json b/.repo-metadata.json
index 2c68061f..5bc93fd7 100644
--- a/.repo-metadata.json
+++ b/.repo-metadata.json
@@ -1,14 +1,16 @@
 {
-  "name": "bigqueryreservation",
-  "name_pretty": "Google BigQuery Reservation",
-  "product_documentation": "https://cloud.google.com/bigquery/docs/reference/reservations",
-  "client_documentation": "https://googleapis.dev/python/bigqueryreservation/latest",
-  "issue_tracker": "",
-  "release_level": "ga",
-  "language": "python",
-  "library_type": "GAPIC_AUTO",
-  "repo": "googleapis/python-bigquery-reservation",
-  "distribution_name": "google-cloud-bigquery-reservation",
-  "api_id": "bigqueryreservation.googleapis.com",
-  "requires_billing": true
-}
\ No newline at end of file
+    "name": "bigqueryreservation",
+    "name_pretty": "Google BigQuery Reservation",
+    "product_documentation": "https://cloud.google.com/bigquery/docs/reference/reservations",
+    "client_documentation": "https://googleapis.dev/python/bigqueryreservation/latest",
+    "issue_tracker": "",
+    "release_level": "ga",
+    "language": "python",
+    "library_type": "GAPIC_AUTO",
+    "repo": "googleapis/python-bigquery-reservation",
+    "distribution_name": "google-cloud-bigquery-reservation",
+    "api_id": "bigqueryreservation.googleapis.com",
+    "requires_billing": true,
+    "codeowner_team": "@googleapis/api-bigquery",
+    "default_version": "v1"
+}
diff --git a/.trampolinerc b/.trampolinerc
index 383b6ec8..0eee72ab 100644
--- a/.trampolinerc
+++ b/.trampolinerc
@@ -16,15 +16,26 @@
 
 # Add required env vars here.
 required_envvars+=(
-    "STAGING_BUCKET"
-    "V2_STAGING_BUCKET"
 )
 
 # Add env vars which are passed down into the container here.
 pass_down_envvars+=(
+    "NOX_SESSION"
+    ###############
+    # Docs builds
+    ###############
     "STAGING_BUCKET"
     "V2_STAGING_BUCKET"
-    "NOX_SESSION"
+    ##################
+    # Samples builds
+    ##################
+    "INSTALL_LIBRARY_FROM_SOURCE"
+    "RUN_TESTS_SESSION"
+    "BUILD_SPECIFIC_GCLOUD_PROJECT"
+    # Target directories.
+    "RUN_TESTS_DIRS"
+    # The nox session to run.
+    "RUN_TESTS_SESSION"
 )
 
 # Prevent unintentional override on the default image.
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 20980a1c..6a4eabe2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,17 @@
 # Changelog
 
+## [1.4.0](https://www.github.com/googleapis/python-bigquery-reservation/compare/v1.3.1...v1.4.0) (2021-10-08)
+
+
+### Features
+
+* add context manager support in client ([#175](https://www.github.com/googleapis/python-bigquery-reservation/issues/175)) ([80768c8](https://www.github.com/googleapis/python-bigquery-reservation/commit/80768c8009b8450a3ac3025c95683bcd0628ef35))
+
+
+### Bug Fixes
+
+* improper types in pagers generation ([ae65c70](https://www.github.com/googleapis/python-bigquery-reservation/commit/ae65c70bd91602ccb851167d27b4161ebd6c3bb3))
+
 ### [1.3.1](https://www.github.com/googleapis/python-bigquery-reservation/compare/v1.3.0...v1.3.1) (2021-09-24)
 
 
diff --git a/CONTRIBUTING.rst b/CONTRIBUTING.rst
index b3ac7085..8fb141a1 100644
--- a/CONTRIBUTING.rst
+++ b/CONTRIBUTING.rst
@@ -22,7 +22,7 @@ In order to add a feature:
   documentation.
 
 - The feature must work fully on the following CPython versions:
-  3.6, 3.7, 3.8 and 3.9 on both UNIX and Windows.
+  3.6, 3.7, 3.8, 3.9 and 3.10 on both UNIX and Windows.
 
 - The feature must not add unnecessary dependencies (where
   "unnecessary" is of course subjective, but new dependencies should
@@ -72,7 +72,7 @@ We use `nox <https://nox.readthedocs.io/en/latest/>`__ to instrument our tests.
 
 - To run a single unit test::
 
-    $ nox -s unit-3.9 -- -k <name of test>
+    $ nox -s unit-3.10 -- -k <name of test>
 
 
   .. note::
@@ -225,11 +225,13 @@ We support:
 -  `Python 3.7`_
 -  `Python 3.8`_
 -  `Python 3.9`_
+-  `Python 3.10`_
 
 .. _Python 3.6: https://docs.python.org/3.6/
 .. _Python 3.7: https://docs.python.org/3.7/
 .. _Python 3.8: https://docs.python.org/3.8/
 .. _Python 3.9: https://docs.python.org/3.9/
+.. _Python 3.10: https://docs.python.org/3.10/
 
 
 Supported versions can be found in our ``noxfile.py`` `config`_.
diff --git a/google/cloud/bigquery_reservation_v1/services/reservation_service/async_client.py b/google/cloud/bigquery_reservation_v1/services/reservation_service/async_client.py
index fc2c5f10..05ae6d34 100644
--- a/google/cloud/bigquery_reservation_v1/services/reservation_service/async_client.py
+++ b/google/cloud/bigquery_reservation_v1/services/reservation_service/async_client.py
@@ -2119,6 +2119,12 @@ async def update_bi_reservation(
         # Done; return the response.
         return response
 
+    async def __aenter__(self):
+        return self
+
+    async def __aexit__(self, exc_type, exc, tb):
+        await self.transport.close()
+
 
 try:
     DEFAULT_CLIENT_INFO = gapic_v1.client_info.ClientInfo(
diff --git a/google/cloud/bigquery_reservation_v1/services/reservation_service/client.py b/google/cloud/bigquery_reservation_v1/services/reservation_service/client.py
index b8079a65..0387956b 100644
--- a/google/cloud/bigquery_reservation_v1/services/reservation_service/client.py
+++ b/google/cloud/bigquery_reservation_v1/services/reservation_service/client.py
@@ -423,10 +423,7 @@ def __init__(
                 client_cert_source_for_mtls=client_cert_source_func,
                 quota_project_id=client_options.quota_project_id,
                 client_info=client_info,
-                always_use_jwt_access=(
-                    Transport == type(self).get_transport_class("grpc")
-                    or Transport == type(self).get_transport_class("grpc_asyncio")
-                ),
+                always_use_jwt_access=True,
             )
 
     def create_reservation(
@@ -2262,6 +2259,19 @@ def update_bi_reservation(
         # Done; return the response.
         return response
 
+    def __enter__(self):
+        return self
+
+    def __exit__(self, type, value, traceback):
+        """Releases underlying transport's resources.
+
+        .. warning::
+            ONLY use as a context manager if the transport is NOT shared
+            with other clients! Exiting the with block will CLOSE the transport
+            and may cause errors in other clients!
+        """
+        self.transport.close()
+
 
 try:
     DEFAULT_CLIENT_INFO = gapic_v1.client_info.ClientInfo(
diff --git a/google/cloud/bigquery_reservation_v1/services/reservation_service/pagers.py b/google/cloud/bigquery_reservation_v1/services/reservation_service/pagers.py
index 2642b0d1..2b34021e 100644
--- a/google/cloud/bigquery_reservation_v1/services/reservation_service/pagers.py
+++ b/google/cloud/bigquery_reservation_v1/services/reservation_service/pagers.py
@@ -15,13 +15,13 @@
 #
 from typing import (
     Any,
-    AsyncIterable,
+    AsyncIterator,
     Awaitable,
     Callable,
-    Iterable,
     Sequence,
     Tuple,
     Optional,
+    Iterator,
 )
 
 from google.cloud.bigquery_reservation_v1.types import reservation
@@ -74,14 +74,14 @@ def __getattr__(self, name: str) -> Any:
         return getattr(self._response, name)
 
     @property
-    def pages(self) -> Iterable[reservation.ListReservationsResponse]:
+    def pages(self) -> Iterator[reservation.ListReservationsResponse]:
         yield self._response
         while self._response.next_page_token:
             self._request.page_token = self._response.next_page_token
             self._response = self._method(self._request, metadata=self._metadata)
             yield self._response
 
-    def __iter__(self) -> Iterable[reservation.Reservation]:
+    def __iter__(self) -> Iterator[reservation.Reservation]:
         for page in self.pages:
             yield from page.reservations
 
@@ -136,14 +136,14 @@ def __getattr__(self, name: str) -> Any:
         return getattr(self._response, name)
 
     @property
-    async def pages(self) -> AsyncIterable[reservation.ListReservationsResponse]:
+    async def pages(self) -> AsyncIterator[reservation.ListReservationsResponse]:
         yield self._response
         while self._response.next_page_token:
             self._request.page_token = self._response.next_page_token
             self._response = await self._method(self._request, metadata=self._metadata)
             yield self._response
 
-    def __aiter__(self) -> AsyncIterable[reservation.Reservation]:
+    def __aiter__(self) -> AsyncIterator[reservation.Reservation]:
         async def async_generator():
             async for page in self.pages:
                 for response in page.reservations:
@@ -202,14 +202,14 @@ def __getattr__(self, name: str) -> Any:
         return getattr(self._response, name)
 
     @property
-    def pages(self) -> Iterable[reservation.ListCapacityCommitmentsResponse]:
+    def pages(self) -> Iterator[reservation.ListCapacityCommitmentsResponse]:
         yield self._response
         while self._response.next_page_token:
             self._request.page_token = self._response.next_page_token
             self._response = self._method(self._request, metadata=self._metadata)
             yield self._response
 
-    def __iter__(self) -> Iterable[reservation.CapacityCommitment]:
+    def __iter__(self) -> Iterator[reservation.CapacityCommitment]:
         for page in self.pages:
             yield from page.capacity_commitments
 
@@ -264,14 +264,14 @@ def __getattr__(self, name: str) -> Any:
         return getattr(self._response, name)
 
     @property
-    async def pages(self) -> AsyncIterable[reservation.ListCapacityCommitmentsResponse]:
+    async def pages(self) -> AsyncIterator[reservation.ListCapacityCommitmentsResponse]:
         yield self._response
         while self._response.next_page_token:
             self._request.page_token = self._response.next_page_token
             self._response = await self._method(self._request, metadata=self._metadata)
             yield self._response
 
-    def __aiter__(self) -> AsyncIterable[reservation.CapacityCommitment]:
+    def __aiter__(self) -> AsyncIterator[reservation.CapacityCommitment]:
         async def async_generator():
             async for page in self.pages:
                 for response in page.capacity_commitments:
@@ -330,14 +330,14 @@ def __getattr__(self, name: str) -> Any:
         return getattr(self._response, name)
 
     @property
-    def pages(self) -> Iterable[reservation.ListAssignmentsResponse]:
+    def pages(self) -> Iterator[reservation.ListAssignmentsResponse]:
         yield self._response
         while self._response.next_page_token:
             self._request.page_token = self._response.next_page_token
             self._response = self._method(self._request, metadata=self._metadata)
             yield self._response
 
-    def __iter__(self) -> Iterable[reservation.Assignment]:
+    def __iter__(self) -> Iterator[reservation.Assignment]:
         for page in self.pages:
             yield from page.assignments
 
@@ -392,14 +392,14 @@ def __getattr__(self, name: str) -> Any:
         return getattr(self._response, name)
 
     @property
-    async def pages(self) -> AsyncIterable[reservation.ListAssignmentsResponse]:
+    async def pages(self) -> AsyncIterator[reservation.ListAssignmentsResponse]:
         yield self._response
         while self._response.next_page_token:
             self._request.page_token = self._response.next_page_token
             self._response = await self._method(self._request, metadata=self._metadata)
             yield self._response
 
-    def __aiter__(self) -> AsyncIterable[reservation.Assignment]:
+    def __aiter__(self) -> AsyncIterator[reservation.Assignment]:
         async def async_generator():
             async for page in self.pages:
                 for response in page.assignments:
@@ -458,14 +458,14 @@ def __getattr__(self, name: str) -> Any:
         return getattr(self._response, name)
 
     @property
-    def pages(self) -> Iterable[reservation.SearchAssignmentsResponse]:
+    def pages(self) -> Iterator[reservation.SearchAssignmentsResponse]:
         yield self._response
         while self._response.next_page_token:
             self._request.page_token = self._response.next_page_token
             self._response = self._method(self._request, metadata=self._metadata)
             yield self._response
 
-    def __iter__(self) -> Iterable[reservation.Assignment]:
+    def __iter__(self) -> Iterator[reservation.Assignment]:
         for page in self.pages:
             yield from page.assignments
 
@@ -520,14 +520,14 @@ def __getattr__(self, name: str) -> Any:
         return getattr(self._response, name)
 
     @property
-    async def pages(self) -> AsyncIterable[reservation.SearchAssignmentsResponse]:
+    async def pages(self) -> AsyncIterator[reservation.SearchAssignmentsResponse]:
         yield self._response
         while self._response.next_page_token:
             self._request.page_token = self._response.next_page_token
             self._response = await self._method(self._request, metadata=self._metadata)
             yield self._response
 
-    def __aiter__(self) -> AsyncIterable[reservation.Assignment]:
+    def __aiter__(self) -> AsyncIterator[reservation.Assignment]:
         async def async_generator():
             async for page in self.pages:
                 for response in page.assignments:
@@ -586,14 +586,14 @@ def __getattr__(self, name: str) -> Any:
         return getattr(self._response, name)
 
     @property
-    def pages(self) -> Iterable[reservation.SearchAllAssignmentsResponse]:
+    def pages(self) -> Iterator[reservation.SearchAllAssignmentsResponse]:
         yield self._response
         while self._response.next_page_token:
             self._request.page_token = self._response.next_page_token
             self._response = self._method(self._request, metadata=self._metadata)
             yield self._response
 
-    def __iter__(self) -> Iterable[reservation.Assignment]:
+    def __iter__(self) -> Iterator[reservation.Assignment]:
         for page in self.pages:
             yield from page.assignments
 
@@ -648,14 +648,14 @@ def __getattr__(self, name: str) -> Any:
         return getattr(self._response, name)
 
     @property
-    async def pages(self) -> AsyncIterable[reservation.SearchAllAssignmentsResponse]:
+    async def pages(self) -> AsyncIterator[reservation.SearchAllAssignmentsResponse]:
         yield self._response
         while self._response.next_page_token:
             self._request.page_token = self._response.next_page_token
             self._response = await self._method(self._request, metadata=self._metadata)
             yield self._response
 
-    def __aiter__(self) -> AsyncIterable[reservation.Assignment]:
+    def __aiter__(self) -> AsyncIterator[reservation.Assignment]:
         async def async_generator():
             async for page in self.pages:
                 for response in page.assignments:
diff --git a/google/cloud/bigquery_reservation_v1/services/reservation_service/transports/base.py b/google/cloud/bigquery_reservation_v1/services/reservation_service/transports/base.py
index ff994fc1..ed076e2c 100644
--- a/google/cloud/bigquery_reservation_v1/services/reservation_service/transports/base.py
+++ b/google/cloud/bigquery_reservation_v1/services/reservation_service/transports/base.py
@@ -353,6 +353,15 @@ def _prep_wrapped_messages(self, client_info):
             ),
         }
 
+    def close(self):
+        """Closes resources associated with the transport.
+
+       .. warning::
+            Only call this method if the transport is NOT shared
+            with other clients - this may cause errors in other clients!
+        """
+        raise NotImplementedError()
+
     @property
     def create_reservation(
         self,
diff --git a/google/cloud/bigquery_reservation_v1/services/reservation_service/transports/grpc.py b/google/cloud/bigquery_reservation_v1/services/reservation_service/transports/grpc.py
index 5164a2d9..b13017a8 100644
--- a/google/cloud/bigquery_reservation_v1/services/reservation_service/transports/grpc.py
+++ b/google/cloud/bigquery_reservation_v1/services/reservation_service/transports/grpc.py
@@ -950,5 +950,8 @@ def update_bi_reservation(
             )
         return self._stubs["update_bi_reservation"]
 
+    def close(self):
+        self.grpc_channel.close()
+
 
 __all__ = ("ReservationServiceGrpcTransport",)
diff --git a/google/cloud/bigquery_reservation_v1/services/reservation_service/transports/grpc_asyncio.py b/google/cloud/bigquery_reservation_v1/services/reservation_service/transports/grpc_asyncio.py
index 56fbb16f..b9b8ac36 100644
--- a/google/cloud/bigquery_reservation_v1/services/reservation_service/transports/grpc_asyncio.py
+++ b/google/cloud/bigquery_reservation_v1/services/reservation_service/transports/grpc_asyncio.py
@@ -974,5 +974,8 @@ def update_bi_reservation(
             )
         return self._stubs["update_bi_reservation"]
 
+    def close(self):
+        return self.grpc_channel.close()
+
 
 __all__ = ("ReservationServiceGrpcAsyncIOTransport",)
diff --git a/google/cloud/bigquery_reservation_v1/types/reservation.py b/google/cloud/bigquery_reservation_v1/types/reservation.py
index e409852a..8fa7bf94 100644
--- a/google/cloud/bigquery_reservation_v1/types/reservation.py
+++ b/google/cloud/bigquery_reservation_v1/types/reservation.py
@@ -732,6 +732,7 @@ class MoveAssignmentRequest(proto.Message):
 
 class BiReservation(proto.Message):
     r"""Represents a BI Reservation.
+
     Attributes:
         name (str):
             The resource name of the singleton BI reservation.
@@ -751,6 +752,7 @@ class BiReservation(proto.Message):
 
 class GetBiReservationRequest(proto.Message):
     r"""A request to get a singleton BI reservation.
+
     Attributes:
         name (str):
             Required. Name of the requested reservation, for example:
@@ -762,6 +764,7 @@ class GetBiReservationRequest(proto.Message):
 
 class UpdateBiReservationRequest(proto.Message):
     r"""A request to update a BI reservation.
+
     Attributes:
         bi_reservation (google.cloud.bigquery_reservation_v1.types.BiReservation):
             A reservation to update.
diff --git a/noxfile.py b/noxfile.py
index 832ef3bc..b20209c9 100644
--- a/noxfile.py
+++ b/noxfile.py
@@ -29,7 +29,7 @@
 
 DEFAULT_PYTHON_VERSION = "3.8"
 SYSTEM_TEST_PYTHON_VERSIONS = ["3.8"]
-UNIT_TEST_PYTHON_VERSIONS = ["3.6", "3.7", "3.8", "3.9"]
+UNIT_TEST_PYTHON_VERSIONS = ["3.6", "3.7", "3.8", "3.9", "3.10"]
 
 CURRENT_DIRECTORY = pathlib.Path(__file__).parent.absolute()
 
diff --git a/samples/snippets/noxfile.py b/samples/snippets/noxfile.py
index b008613f..93a9122c 100644
--- a/samples/snippets/noxfile.py
+++ b/samples/snippets/noxfile.py
@@ -87,7 +87,7 @@ def get_pytest_env_vars() -> Dict[str, str]:
 
 # DO NOT EDIT - automatically generated.
 # All versions used to test samples.
-ALL_VERSIONS = ["3.6", "3.7", "3.8", "3.9"]
+ALL_VERSIONS = ["3.6", "3.7", "3.8", "3.9", "3.10"]
 
 # Any default versions that should be ignored.
 IGNORED_VERSIONS = TEST_CONFIG["ignored_versions"]
@@ -98,6 +98,10 @@ def get_pytest_env_vars() -> Dict[str, str]:
     "True",
     "true",
 )
+
+# Error if a python version is missing
+nox.options.error_on_missing_interpreters = True
+
 #
 # Style Checks
 #
diff --git a/samples/snippets/requirements.txt b/samples/snippets/requirements.txt
index 3e861eec..4d9c3b24 100644
--- a/samples/snippets/requirements.txt
+++ b/samples/snippets/requirements.txt
@@ -1 +1 @@
-google-cloud-bigquery-reservation==1.3.0
+google-cloud-bigquery-reservation==1.3.1
diff --git a/setup.py b/setup.py
index c36fc351..6ab3e24d 100644
--- a/setup.py
+++ b/setup.py
@@ -19,7 +19,7 @@
 import os
 import setuptools  # type: ignore
 
-version = "1.3.1"
+version = "1.4.0"
 
 package_root = os.path.abspath(os.path.dirname(__file__))
 
diff --git a/tests/unit/gapic/bigquery_reservation_v1/test_reservation_service.py b/tests/unit/gapic/bigquery_reservation_v1/test_reservation_service.py
index 413e9eb5..0646fd10 100644
--- a/tests/unit/gapic/bigquery_reservation_v1/test_reservation_service.py
+++ b/tests/unit/gapic/bigquery_reservation_v1/test_reservation_service.py
@@ -29,6 +29,7 @@
 from google.api_core import gapic_v1
 from google.api_core import grpc_helpers
 from google.api_core import grpc_helpers_async
+from google.api_core import path_template
 from google.auth import credentials as ga_credentials
 from google.auth.exceptions import MutualTLSChannelError
 from google.cloud.bigquery_reservation_v1.services.reservation_service import (
@@ -6122,6 +6123,9 @@ def test_reservation_service_base_transport():
         with pytest.raises(NotImplementedError):
             getattr(transport, method)(request=object())
 
+    with pytest.raises(NotImplementedError):
+        transport.close()
+
 
 @requires_google_auth_gte_1_25_0
 def test_reservation_service_base_transport_with_credentials_file():
@@ -6706,3 +6710,49 @@ def test_client_withDEFAULT_CLIENT_INFO():
             credentials=ga_credentials.AnonymousCredentials(), client_info=client_info,
         )
         prep.assert_called_once_with(client_info)
+
+
+@pytest.mark.asyncio
+async def test_transport_close_async():
+    client = ReservationServiceAsyncClient(
+        credentials=ga_credentials.AnonymousCredentials(), transport="grpc_asyncio",
+    )
+    with mock.patch.object(
+        type(getattr(client.transport, "grpc_channel")), "close"
+    ) as close:
+        async with client:
+            close.assert_not_called()
+        close.assert_called_once()
+
+
+def test_transport_close():
+    transports = {
+        "grpc": "_grpc_channel",
+    }
+
+    for transport, close_name in transports.items():
+        client = ReservationServiceClient(
+            credentials=ga_credentials.AnonymousCredentials(), transport=transport
+        )
+        with mock.patch.object(
+            type(getattr(client.transport, close_name)), "close"
+        ) as close:
+            with client:
+                close.assert_not_called()
+            close.assert_called_once()
+
+
+def test_client_ctx():
+    transports = [
+        "grpc",
+    ]
+    for transport in transports:
+        client = ReservationServiceClient(
+            credentials=ga_credentials.AnonymousCredentials(), transport=transport
+        )
+        # Test client calls underlying transport.
+        with mock.patch.object(type(client.transport), "close") as close:
+            close.assert_not_called()
+            with client:
+                pass
+            close.assert_called()