diff --git a/packages/google-cloud-billing-budgets/.coveragerc b/packages/google-cloud-billing-budgets/.coveragerc
index 766c60dcbae3..c98604cf4a5e 100644
--- a/packages/google-cloud-billing-budgets/.coveragerc
+++ b/packages/google-cloud-billing-budgets/.coveragerc
@@ -10,8 +10,3 @@ exclude_lines =
     pragma: NO COVER
     # Ignore debug-only repr
     def __repr__
-    # Ignore pkg_resources exceptions.
-    # This is added at the module level as a safeguard for if someone
-    # generates the code and tries to run it without pip installing. This
-    # makes it virtually impossible to test properly.
-    except pkg_resources.DistributionNotFound
diff --git a/packages/google-cloud-billing-budgets/google/cloud/billing/budgets_v1/gapic_version.py b/packages/google-cloud-billing-budgets/google/cloud/billing/budgets_v1/gapic_version.py
new file mode 100644
index 000000000000..ed1189c8f006
--- /dev/null
+++ b/packages/google-cloud-billing-budgets/google/cloud/billing/budgets_v1/gapic_version.py
@@ -0,0 +1,16 @@
+# -*- coding: utf-8 -*-
+# Copyright 2022 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# 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.
+#
+__version__ = "1.7.3"  # {x-release-please-version}
diff --git a/packages/google-cloud-billing-budgets/google/cloud/billing/budgets_v1/services/budget_service/async_client.py b/packages/google-cloud-billing-budgets/google/cloud/billing/budgets_v1/services/budget_service/async_client.py
index f7f25c1c2c90..9002564ed6be 100644
--- a/packages/google-cloud-billing-budgets/google/cloud/billing/budgets_v1/services/budget_service/async_client.py
+++ b/packages/google-cloud-billing-budgets/google/cloud/billing/budgets_v1/services/budget_service/async_client.py
@@ -34,7 +34,8 @@
 from google.api_core.client_options import ClientOptions
 from google.auth import credentials as ga_credentials  # type: ignore
 from google.oauth2 import service_account  # type: ignore
-import pkg_resources
+
+from google.cloud.billing.budgets_v1 import gapic_version as package_version
 
 try:
     OptionalRetry = Union[retries.Retry, gapic_v1.method._MethodDefault]
@@ -225,7 +226,7 @@ async def create_budget(
         parent: Optional[str] = None,
         budget: Optional[budget_model.Budget] = None,
         retry: OptionalRetry = gapic_v1.method.DEFAULT,
-        timeout: Optional[float] = None,
+        timeout: Union[float, object] = gapic_v1.method.DEFAULT,
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> budget_model.Budget:
         r"""Creates a new budget. See `Quotas and
@@ -345,7 +346,7 @@ async def update_budget(
         budget: Optional[budget_model.Budget] = None,
         update_mask: Optional[field_mask_pb2.FieldMask] = None,
         retry: OptionalRetry = gapic_v1.method.DEFAULT,
-        timeout: Optional[float] = None,
+        timeout: Union[float, object] = gapic_v1.method.DEFAULT,
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> budget_model.Budget:
         r"""Updates a budget and returns the updated budget.
@@ -482,7 +483,7 @@ async def get_budget(
         *,
         name: Optional[str] = None,
         retry: OptionalRetry = gapic_v1.method.DEFAULT,
-        timeout: Optional[float] = None,
+        timeout: Union[float, object] = gapic_v1.method.DEFAULT,
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> budget_model.Budget:
         r"""Returns a budget.
@@ -605,7 +606,7 @@ async def list_budgets(
         *,
         parent: Optional[str] = None,
         retry: OptionalRetry = gapic_v1.method.DEFAULT,
-        timeout: Optional[float] = None,
+        timeout: Union[float, object] = gapic_v1.method.DEFAULT,
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> pagers.ListBudgetsAsyncPager:
         r"""Returns a list of budgets for a billing account.
@@ -734,7 +735,7 @@ async def delete_budget(
         *,
         name: Optional[str] = None,
         retry: OptionalRetry = gapic_v1.method.DEFAULT,
-        timeout: Optional[float] = None,
+        timeout: Union[float, object] = gapic_v1.method.DEFAULT,
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> None:
         r"""Deletes a budget. Returns successfully if already
@@ -836,14 +837,9 @@ async def __aexit__(self, exc_type, exc, tb):
         await self.transport.close()
 
 
-try:
-    DEFAULT_CLIENT_INFO = gapic_v1.client_info.ClientInfo(
-        gapic_version=pkg_resources.get_distribution(
-            "google-cloud-billing-budgets",
-        ).version,
-    )
-except pkg_resources.DistributionNotFound:
-    DEFAULT_CLIENT_INFO = gapic_v1.client_info.ClientInfo()
+DEFAULT_CLIENT_INFO = gapic_v1.client_info.ClientInfo(
+    gapic_version=package_version.__version__
+)
 
 
 __all__ = ("BudgetServiceAsyncClient",)
diff --git a/packages/google-cloud-billing-budgets/google/cloud/billing/budgets_v1/services/budget_service/client.py b/packages/google-cloud-billing-budgets/google/cloud/billing/budgets_v1/services/budget_service/client.py
index 6df1a84f1133..28a734e987c0 100644
--- a/packages/google-cloud-billing-budgets/google/cloud/billing/budgets_v1/services/budget_service/client.py
+++ b/packages/google-cloud-billing-budgets/google/cloud/billing/budgets_v1/services/budget_service/client.py
@@ -38,7 +38,8 @@
 from google.auth.transport import mtls  # type: ignore
 from google.auth.transport.grpc import SslCredentials  # type: ignore
 from google.oauth2 import service_account  # type: ignore
-import pkg_resources
+
+from google.cloud.billing.budgets_v1 import gapic_version as package_version
 
 try:
     OptionalRetry = Union[retries.Retry, gapic_v1.method._MethodDefault]
@@ -447,7 +448,7 @@ def create_budget(
         parent: Optional[str] = None,
         budget: Optional[budget_model.Budget] = None,
         retry: OptionalRetry = gapic_v1.method.DEFAULT,
-        timeout: Optional[float] = None,
+        timeout: Union[float, object] = gapic_v1.method.DEFAULT,
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> budget_model.Budget:
         r"""Creates a new budget. See `Quotas and
@@ -567,7 +568,7 @@ def update_budget(
         budget: Optional[budget_model.Budget] = None,
         update_mask: Optional[field_mask_pb2.FieldMask] = None,
         retry: OptionalRetry = gapic_v1.method.DEFAULT,
-        timeout: Optional[float] = None,
+        timeout: Union[float, object] = gapic_v1.method.DEFAULT,
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> budget_model.Budget:
         r"""Updates a budget and returns the updated budget.
@@ -694,7 +695,7 @@ def get_budget(
         *,
         name: Optional[str] = None,
         retry: OptionalRetry = gapic_v1.method.DEFAULT,
-        timeout: Optional[float] = None,
+        timeout: Union[float, object] = gapic_v1.method.DEFAULT,
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> budget_model.Budget:
         r"""Returns a budget.
@@ -807,7 +808,7 @@ def list_budgets(
         *,
         parent: Optional[str] = None,
         retry: OptionalRetry = gapic_v1.method.DEFAULT,
-        timeout: Optional[float] = None,
+        timeout: Union[float, object] = gapic_v1.method.DEFAULT,
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> pagers.ListBudgetsPager:
         r"""Returns a list of budgets for a billing account.
@@ -926,7 +927,7 @@ def delete_budget(
         *,
         name: Optional[str] = None,
         retry: OptionalRetry = gapic_v1.method.DEFAULT,
-        timeout: Optional[float] = None,
+        timeout: Union[float, object] = gapic_v1.method.DEFAULT,
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> None:
         r"""Deletes a budget. Returns successfully if already
@@ -1025,14 +1026,9 @@ def __exit__(self, type, value, traceback):
         self.transport.close()
 
 
-try:
-    DEFAULT_CLIENT_INFO = gapic_v1.client_info.ClientInfo(
-        gapic_version=pkg_resources.get_distribution(
-            "google-cloud-billing-budgets",
-        ).version,
-    )
-except pkg_resources.DistributionNotFound:
-    DEFAULT_CLIENT_INFO = gapic_v1.client_info.ClientInfo()
+DEFAULT_CLIENT_INFO = gapic_v1.client_info.ClientInfo(
+    gapic_version=package_version.__version__
+)
 
 
 __all__ = ("BudgetServiceClient",)
diff --git a/packages/google-cloud-billing-budgets/google/cloud/billing/budgets_v1/services/budget_service/transports/base.py b/packages/google-cloud-billing-budgets/google/cloud/billing/budgets_v1/services/budget_service/transports/base.py
index c235ce0e5c54..30641f00eb6f 100644
--- a/packages/google-cloud-billing-budgets/google/cloud/billing/budgets_v1/services/budget_service/transports/base.py
+++ b/packages/google-cloud-billing-budgets/google/cloud/billing/budgets_v1/services/budget_service/transports/base.py
@@ -24,18 +24,13 @@
 from google.auth import credentials as ga_credentials  # type: ignore
 from google.oauth2 import service_account  # type: ignore
 from google.protobuf import empty_pb2  # type: ignore
-import pkg_resources
 
+from google.cloud.billing.budgets_v1 import gapic_version as package_version
 from google.cloud.billing.budgets_v1.types import budget_model, budget_service
 
-try:
-    DEFAULT_CLIENT_INFO = gapic_v1.client_info.ClientInfo(
-        gapic_version=pkg_resources.get_distribution(
-            "google-cloud-billing-budgets",
-        ).version,
-    )
-except pkg_resources.DistributionNotFound:
-    DEFAULT_CLIENT_INFO = gapic_v1.client_info.ClientInfo()
+DEFAULT_CLIENT_INFO = gapic_v1.client_info.ClientInfo(
+    gapic_version=package_version.__version__
+)
 
 
 class BudgetServiceTransport(abc.ABC):
diff --git a/packages/google-cloud-billing-budgets/google/cloud/billing/budgets_v1beta1/gapic_version.py b/packages/google-cloud-billing-budgets/google/cloud/billing/budgets_v1beta1/gapic_version.py
new file mode 100644
index 000000000000..ed1189c8f006
--- /dev/null
+++ b/packages/google-cloud-billing-budgets/google/cloud/billing/budgets_v1beta1/gapic_version.py
@@ -0,0 +1,16 @@
+# -*- coding: utf-8 -*-
+# Copyright 2022 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# 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.
+#
+__version__ = "1.7.3"  # {x-release-please-version}
diff --git a/packages/google-cloud-billing-budgets/google/cloud/billing/budgets_v1beta1/services/budget_service/async_client.py b/packages/google-cloud-billing-budgets/google/cloud/billing/budgets_v1beta1/services/budget_service/async_client.py
index ae24b33e8feb..668201e3a296 100644
--- a/packages/google-cloud-billing-budgets/google/cloud/billing/budgets_v1beta1/services/budget_service/async_client.py
+++ b/packages/google-cloud-billing-budgets/google/cloud/billing/budgets_v1beta1/services/budget_service/async_client.py
@@ -34,7 +34,8 @@
 from google.api_core.client_options import ClientOptions
 from google.auth import credentials as ga_credentials  # type: ignore
 from google.oauth2 import service_account  # type: ignore
-import pkg_resources
+
+from google.cloud.billing.budgets_v1beta1 import gapic_version as package_version
 
 try:
     OptionalRetry = Union[retries.Retry, gapic_v1.method._MethodDefault]
@@ -221,7 +222,7 @@ async def create_budget(
         request: Optional[Union[budget_service.CreateBudgetRequest, dict]] = None,
         *,
         retry: OptionalRetry = gapic_v1.method.DEFAULT,
-        timeout: Optional[float] = None,
+        timeout: Union[float, object] = gapic_v1.method.DEFAULT,
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> budget_model.Budget:
         r"""Creates a new budget. See `Quotas and
@@ -310,7 +311,7 @@ async def update_budget(
         request: Optional[Union[budget_service.UpdateBudgetRequest, dict]] = None,
         *,
         retry: OptionalRetry = gapic_v1.method.DEFAULT,
-        timeout: Optional[float] = None,
+        timeout: Union[float, object] = gapic_v1.method.DEFAULT,
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> budget_model.Budget:
         r"""Updates a budget and returns the updated budget.
@@ -411,7 +412,7 @@ async def get_budget(
         request: Optional[Union[budget_service.GetBudgetRequest, dict]] = None,
         *,
         retry: OptionalRetry = gapic_v1.method.DEFAULT,
-        timeout: Optional[float] = None,
+        timeout: Union[float, object] = gapic_v1.method.DEFAULT,
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> budget_model.Budget:
         r"""Returns a budget.
@@ -512,7 +513,7 @@ async def list_budgets(
         request: Optional[Union[budget_service.ListBudgetsRequest, dict]] = None,
         *,
         retry: OptionalRetry = gapic_v1.method.DEFAULT,
-        timeout: Optional[float] = None,
+        timeout: Union[float, object] = gapic_v1.method.DEFAULT,
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> pagers.ListBudgetsAsyncPager:
         r"""Returns a list of budgets for a billing account.
@@ -618,7 +619,7 @@ async def delete_budget(
         request: Optional[Union[budget_service.DeleteBudgetRequest, dict]] = None,
         *,
         retry: OptionalRetry = gapic_v1.method.DEFAULT,
-        timeout: Optional[float] = None,
+        timeout: Union[float, object] = gapic_v1.method.DEFAULT,
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> None:
         r"""Deletes a budget. Returns successfully if already
@@ -698,14 +699,9 @@ async def __aexit__(self, exc_type, exc, tb):
         await self.transport.close()
 
 
-try:
-    DEFAULT_CLIENT_INFO = gapic_v1.client_info.ClientInfo(
-        gapic_version=pkg_resources.get_distribution(
-            "google-cloud-billing-budgets",
-        ).version,
-    )
-except pkg_resources.DistributionNotFound:
-    DEFAULT_CLIENT_INFO = gapic_v1.client_info.ClientInfo()
+DEFAULT_CLIENT_INFO = gapic_v1.client_info.ClientInfo(
+    gapic_version=package_version.__version__
+)
 
 
 __all__ = ("BudgetServiceAsyncClient",)
diff --git a/packages/google-cloud-billing-budgets/google/cloud/billing/budgets_v1beta1/services/budget_service/client.py b/packages/google-cloud-billing-budgets/google/cloud/billing/budgets_v1beta1/services/budget_service/client.py
index 92f39f0943d2..3c988535cf0c 100644
--- a/packages/google-cloud-billing-budgets/google/cloud/billing/budgets_v1beta1/services/budget_service/client.py
+++ b/packages/google-cloud-billing-budgets/google/cloud/billing/budgets_v1beta1/services/budget_service/client.py
@@ -38,7 +38,8 @@
 from google.auth.transport import mtls  # type: ignore
 from google.auth.transport.grpc import SslCredentials  # type: ignore
 from google.oauth2 import service_account  # type: ignore
-import pkg_resources
+
+from google.cloud.billing.budgets_v1beta1 import gapic_version as package_version
 
 try:
     OptionalRetry = Union[retries.Retry, gapic_v1.method._MethodDefault]
@@ -443,7 +444,7 @@ def create_budget(
         request: Optional[Union[budget_service.CreateBudgetRequest, dict]] = None,
         *,
         retry: OptionalRetry = gapic_v1.method.DEFAULT,
-        timeout: Optional[float] = None,
+        timeout: Union[float, object] = gapic_v1.method.DEFAULT,
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> budget_model.Budget:
         r"""Creates a new budget. See `Quotas and
@@ -533,7 +534,7 @@ def update_budget(
         request: Optional[Union[budget_service.UpdateBudgetRequest, dict]] = None,
         *,
         retry: OptionalRetry = gapic_v1.method.DEFAULT,
-        timeout: Optional[float] = None,
+        timeout: Union[float, object] = gapic_v1.method.DEFAULT,
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> budget_model.Budget:
         r"""Updates a budget and returns the updated budget.
@@ -625,7 +626,7 @@ def get_budget(
         request: Optional[Union[budget_service.GetBudgetRequest, dict]] = None,
         *,
         retry: OptionalRetry = gapic_v1.method.DEFAULT,
-        timeout: Optional[float] = None,
+        timeout: Union[float, object] = gapic_v1.method.DEFAULT,
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> budget_model.Budget:
         r"""Returns a budget.
@@ -717,7 +718,7 @@ def list_budgets(
         request: Optional[Union[budget_service.ListBudgetsRequest, dict]] = None,
         *,
         retry: OptionalRetry = gapic_v1.method.DEFAULT,
-        timeout: Optional[float] = None,
+        timeout: Union[float, object] = gapic_v1.method.DEFAULT,
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> pagers.ListBudgetsPager:
         r"""Returns a list of budgets for a billing account.
@@ -814,7 +815,7 @@ def delete_budget(
         request: Optional[Union[budget_service.DeleteBudgetRequest, dict]] = None,
         *,
         retry: OptionalRetry = gapic_v1.method.DEFAULT,
-        timeout: Optional[float] = None,
+        timeout: Union[float, object] = gapic_v1.method.DEFAULT,
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> None:
         r"""Deletes a budget. Returns successfully if already
@@ -892,14 +893,9 @@ def __exit__(self, type, value, traceback):
         self.transport.close()
 
 
-try:
-    DEFAULT_CLIENT_INFO = gapic_v1.client_info.ClientInfo(
-        gapic_version=pkg_resources.get_distribution(
-            "google-cloud-billing-budgets",
-        ).version,
-    )
-except pkg_resources.DistributionNotFound:
-    DEFAULT_CLIENT_INFO = gapic_v1.client_info.ClientInfo()
+DEFAULT_CLIENT_INFO = gapic_v1.client_info.ClientInfo(
+    gapic_version=package_version.__version__
+)
 
 
 __all__ = ("BudgetServiceClient",)
diff --git a/packages/google-cloud-billing-budgets/google/cloud/billing/budgets_v1beta1/services/budget_service/transports/base.py b/packages/google-cloud-billing-budgets/google/cloud/billing/budgets_v1beta1/services/budget_service/transports/base.py
index c764d4f8da41..fb9af21978da 100644
--- a/packages/google-cloud-billing-budgets/google/cloud/billing/budgets_v1beta1/services/budget_service/transports/base.py
+++ b/packages/google-cloud-billing-budgets/google/cloud/billing/budgets_v1beta1/services/budget_service/transports/base.py
@@ -24,18 +24,13 @@
 from google.auth import credentials as ga_credentials  # type: ignore
 from google.oauth2 import service_account  # type: ignore
 from google.protobuf import empty_pb2  # type: ignore
-import pkg_resources
 
+from google.cloud.billing.budgets_v1beta1 import gapic_version as package_version
 from google.cloud.billing.budgets_v1beta1.types import budget_model, budget_service
 
-try:
-    DEFAULT_CLIENT_INFO = gapic_v1.client_info.ClientInfo(
-        gapic_version=pkg_resources.get_distribution(
-            "google-cloud-billing-budgets",
-        ).version,
-    )
-except pkg_resources.DistributionNotFound:
-    DEFAULT_CLIENT_INFO = gapic_v1.client_info.ClientInfo()
+DEFAULT_CLIENT_INFO = gapic_v1.client_info.ClientInfo(
+    gapic_version=package_version.__version__
+)
 
 
 class BudgetServiceTransport(abc.ABC):
diff --git a/packages/google-cloud-billing-budgets/release-please-config.json b/packages/google-cloud-billing-budgets/release-please-config.json
index 05672b2541c7..d4d2a6af991c 100644
--- a/packages/google-cloud-billing-budgets/release-please-config.json
+++ b/packages/google-cloud-billing-budgets/release-please-config.json
@@ -4,7 +4,9 @@
     ".": {
       "release-type": "python",
       "extra-files": [
+        "google/cloud/billing/budgets_v1/gapic_version.py",
         "google/cloud/billing/budgets/gapic_version.py",
+        "google/cloud/billing/budgets_v1beta1/gapic_version.py",
         {
           "type": "json",
           "path": "samples/generated_samples/snippet_metadata_google.cloud.billing.budgets.v1.json",
diff --git a/packages/google-cloud-billing-budgets/setup.py b/packages/google-cloud-billing-budgets/setup.py
index 8f87ce57ca0a..a79b5c8b1dd0 100644
--- a/packages/google-cloud-billing-budgets/setup.py
+++ b/packages/google-cloud-billing-budgets/setup.py
@@ -38,7 +38,7 @@
     release_status = "Development Status :: 5 - Production/Stable"
 
 dependencies = [
-    "google-api-core[grpc] >= 1.33.2, <3.0.0dev,!=2.0.*,!=2.1.*,!=2.2.*,!=2.3.*,!=2.4.*,!=2.5.*,!=2.6.*,!=2.7.*",
+    "google-api-core[grpc] >= 1.34.0, <3.0.0dev,!=2.0.*,!=2.1.*,!=2.2.*,!=2.3.*,!=2.4.*,!=2.5.*,!=2.6.*,!=2.7.*,!=2.8.*,!=2.9.*,!=2.10.*",
     "proto-plus >= 1.22.0, <2.0.0dev",
     "protobuf>=3.19.5,<5.0.0dev,!=3.20.0,!=3.20.1,!=4.21.0,!=4.21.1,!=4.21.2,!=4.21.3,!=4.21.4,!=4.21.5",
 ]
diff --git a/packages/google-cloud-billing-budgets/testing/constraints-3.7.txt b/packages/google-cloud-billing-budgets/testing/constraints-3.7.txt
index 6f3158cc2034..6c44adfea7ee 100644
--- a/packages/google-cloud-billing-budgets/testing/constraints-3.7.txt
+++ b/packages/google-cloud-billing-budgets/testing/constraints-3.7.txt
@@ -4,6 +4,6 @@
 # Pin the version to the lower bound.
 # e.g., if setup.py has "google-cloud-foo >= 1.14.0, < 2.0.0dev",
 # Then this file should have google-cloud-foo==1.14.0
-google-api-core==1.33.2
+google-api-core==1.34.0
 proto-plus==1.22.0
 protobuf==3.19.5