diff --git a/google/cloud/pubsublite_v1/services/admin_service/async_client.py b/google/cloud/pubsublite_v1/services/admin_service/async_client.py
index a274aa1a..6c19a6fc 100644
--- a/google/cloud/pubsublite_v1/services/admin_service/async_client.py
+++ b/google/cloud/pubsublite_v1/services/admin_service/async_client.py
@@ -2510,7 +2510,7 @@ async def cancel_operation(
             metadata=metadata,
         )
 
-    async def __aenter__(self):
+    async def __aenter__(self) -> "AdminServiceAsyncClient":
         return self
 
     async def __aexit__(self, exc_type, exc, tb):
diff --git a/google/cloud/pubsublite_v1/services/cursor_service/async_client.py b/google/cloud/pubsublite_v1/services/cursor_service/async_client.py
index c820cbfa..378a3889 100644
--- a/google/cloud/pubsublite_v1/services/cursor_service/async_client.py
+++ b/google/cloud/pubsublite_v1/services/cursor_service/async_client.py
@@ -740,7 +740,7 @@ async def cancel_operation(
             metadata=metadata,
         )
 
-    async def __aenter__(self):
+    async def __aenter__(self) -> "CursorServiceAsyncClient":
         return self
 
     async def __aexit__(self, exc_type, exc, tb):
diff --git a/google/cloud/pubsublite_v1/services/partition_assignment_service/async_client.py b/google/cloud/pubsublite_v1/services/partition_assignment_service/async_client.py
index 52882e2b..7836eb4a 100644
--- a/google/cloud/pubsublite_v1/services/partition_assignment_service/async_client.py
+++ b/google/cloud/pubsublite_v1/services/partition_assignment_service/async_client.py
@@ -533,7 +533,7 @@ async def cancel_operation(
             metadata=metadata,
         )
 
-    async def __aenter__(self):
+    async def __aenter__(self) -> "PartitionAssignmentServiceAsyncClient":
         return self
 
     async def __aexit__(self, exc_type, exc, tb):
diff --git a/google/cloud/pubsublite_v1/services/publisher_service/async_client.py b/google/cloud/pubsublite_v1/services/publisher_service/async_client.py
index c349200c..4ce1255d 100644
--- a/google/cloud/pubsublite_v1/services/publisher_service/async_client.py
+++ b/google/cloud/pubsublite_v1/services/publisher_service/async_client.py
@@ -524,7 +524,7 @@ async def cancel_operation(
             metadata=metadata,
         )
 
-    async def __aenter__(self):
+    async def __aenter__(self) -> "PublisherServiceAsyncClient":
         return self
 
     async def __aexit__(self, exc_type, exc, tb):
diff --git a/google/cloud/pubsublite_v1/services/subscriber_service/async_client.py b/google/cloud/pubsublite_v1/services/subscriber_service/async_client.py
index 6d83859e..e6b66202 100644
--- a/google/cloud/pubsublite_v1/services/subscriber_service/async_client.py
+++ b/google/cloud/pubsublite_v1/services/subscriber_service/async_client.py
@@ -514,7 +514,7 @@ async def cancel_operation(
             metadata=metadata,
         )
 
-    async def __aenter__(self):
+    async def __aenter__(self) -> "SubscriberServiceAsyncClient":
         return self
 
     async def __aexit__(self, exc_type, exc, tb):
diff --git a/google/cloud/pubsublite_v1/services/topic_stats_service/async_client.py b/google/cloud/pubsublite_v1/services/topic_stats_service/async_client.py
index 7069c342..b85658dd 100644
--- a/google/cloud/pubsublite_v1/services/topic_stats_service/async_client.py
+++ b/google/cloud/pubsublite_v1/services/topic_stats_service/async_client.py
@@ -688,7 +688,7 @@ async def cancel_operation(
             metadata=metadata,
         )
 
-    async def __aenter__(self):
+    async def __aenter__(self) -> "TopicStatsServiceAsyncClient":
         return self
 
     async def __aexit__(self, exc_type, exc, tb):
diff --git a/samples/generated_samples/snippet_metadata_google.cloud.pubsublite.v1.json b/samples/generated_samples/snippet_metadata_google.cloud.pubsublite.v1.json
index 7f020b96..b2b99995 100644
--- a/samples/generated_samples/snippet_metadata_google.cloud.pubsublite.v1.json
+++ b/samples/generated_samples/snippet_metadata_google.cloud.pubsublite.v1.json
@@ -8,7 +8,7 @@
     ],
     "language": "PYTHON",
     "name": "google-cloud-pubsublite",
-    "version": "1.8.2"
+    "version": "0.1.0"
   },
   "snippets": [
     {
diff --git a/tests/unit/gapic/pubsublite_v1/test_admin_service.py b/tests/unit/gapic/pubsublite_v1/test_admin_service.py
index 1bfcce83..d62793b7 100644
--- a/tests/unit/gapic/pubsublite_v1/test_admin_service.py
+++ b/tests/unit/gapic/pubsublite_v1/test_admin_service.py
@@ -1810,9 +1810,11 @@ async def test_list_topics_async_pages():
             RuntimeError,
         )
         pages = []
-        async for page_ in (
+        # Workaround issue in python 3.9 related to code coverage by adding `# pragma: no branch`
+        # See https://github.com/googleapis/gapic-generator-python/pull/1174#issuecomment-1025132372
+        async for page_ in (  # pragma: no branch
             await client.list_topics(request={})
-        ).pages:  # pragma: no branch
+        ).pages:
             pages.append(page_)
         for page_, token in zip(pages, ["abc", "def", "ghi", ""]):
             assert page_.raw_page.next_page_token == token
@@ -2714,9 +2716,11 @@ async def test_list_topic_subscriptions_async_pages():
             RuntimeError,
         )
         pages = []
-        async for page_ in (
+        # Workaround issue in python 3.9 related to code coverage by adding `# pragma: no branch`
+        # See https://github.com/googleapis/gapic-generator-python/pull/1174#issuecomment-1025132372
+        async for page_ in (  # pragma: no branch
             await client.list_topic_subscriptions(request={})
-        ).pages:  # pragma: no branch
+        ).pages:
             pages.append(page_)
         for page_, token in zip(pages, ["abc", "def", "ghi", ""]):
             assert page_.raw_page.next_page_token == token
@@ -3654,9 +3658,11 @@ async def test_list_subscriptions_async_pages():
             RuntimeError,
         )
         pages = []
-        async for page_ in (
+        # Workaround issue in python 3.9 related to code coverage by adding `# pragma: no branch`
+        # See https://github.com/googleapis/gapic-generator-python/pull/1174#issuecomment-1025132372
+        async for page_ in (  # pragma: no branch
             await client.list_subscriptions(request={})
-        ).pages:  # pragma: no branch
+        ).pages:
             pages.append(page_)
         for page_, token in zip(pages, ["abc", "def", "ghi", ""]):
             assert page_.raw_page.next_page_token == token
@@ -5238,9 +5244,11 @@ async def test_list_reservations_async_pages():
             RuntimeError,
         )
         pages = []
-        async for page_ in (
+        # Workaround issue in python 3.9 related to code coverage by adding `# pragma: no branch`
+        # See https://github.com/googleapis/gapic-generator-python/pull/1174#issuecomment-1025132372
+        async for page_ in (  # pragma: no branch
             await client.list_reservations(request={})
-        ).pages:  # pragma: no branch
+        ).pages:
             pages.append(page_)
         for page_, token in zip(pages, ["abc", "def", "ghi", ""]):
             assert page_.raw_page.next_page_token == token
@@ -6174,9 +6182,11 @@ async def test_list_reservation_topics_async_pages():
             RuntimeError,
         )
         pages = []
-        async for page_ in (
+        # Workaround issue in python 3.9 related to code coverage by adding `# pragma: no branch`
+        # See https://github.com/googleapis/gapic-generator-python/pull/1174#issuecomment-1025132372
+        async for page_ in (  # pragma: no branch
             await client.list_reservation_topics(request={})
-        ).pages:  # pragma: no branch
+        ).pages:
             pages.append(page_)
         for page_, token in zip(pages, ["abc", "def", "ghi", ""]):
             assert page_.raw_page.next_page_token == token
diff --git a/tests/unit/gapic/pubsublite_v1/test_cursor_service.py b/tests/unit/gapic/pubsublite_v1/test_cursor_service.py
index 3ae20f03..dba18489 100644
--- a/tests/unit/gapic/pubsublite_v1/test_cursor_service.py
+++ b/tests/unit/gapic/pubsublite_v1/test_cursor_service.py
@@ -1336,9 +1336,11 @@ async def test_list_partition_cursors_async_pages():
             RuntimeError,
         )
         pages = []
-        async for page_ in (
+        # Workaround issue in python 3.9 related to code coverage by adding `# pragma: no branch`
+        # See https://github.com/googleapis/gapic-generator-python/pull/1174#issuecomment-1025132372
+        async for page_ in (  # pragma: no branch
             await client.list_partition_cursors(request={})
-        ).pages:  # pragma: no branch
+        ).pages:
             pages.append(page_)
         for page_, token in zip(pages, ["abc", "def", "ghi", ""]):
             assert page_.raw_page.next_page_token == token