diff --git a/google/cloud/apigee_registry_v1/services/provisioning/client.py b/google/cloud/apigee_registry_v1/services/provisioning/client.py
index c45844a..4156dba 100644
--- a/google/cloud/apigee_registry_v1/services/provisioning/client.py
+++ b/google/cloud/apigee_registry_v1/services/provisioning/client.py
@@ -821,7 +821,7 @@ def sample_get_instance():
         # Done; return the response.
         return response
 
-    def __enter__(self):
+    def __enter__(self) -> "ProvisioningClient":
         return self
 
     def __exit__(self, type, value, traceback):
diff --git a/google/cloud/apigee_registry_v1/services/registry/client.py b/google/cloud/apigee_registry_v1/services/registry/client.py
index 785e801..5648570 100644
--- a/google/cloud/apigee_registry_v1/services/registry/client.py
+++ b/google/cloud/apigee_registry_v1/services/registry/client.py
@@ -4491,7 +4491,7 @@ def sample_delete_artifact():
             metadata=metadata,
         )
 
-    def __enter__(self):
+    def __enter__(self) -> "RegistryClient":
         return self
 
     def __exit__(self, type, value, traceback):
diff --git a/google/cloud/apigee_registry_v1/types/provisioning_service.py b/google/cloud/apigee_registry_v1/types/provisioning_service.py
index a49bea4..5340744 100644
--- a/google/cloud/apigee_registry_v1/types/provisioning_service.py
+++ b/google/cloud/apigee_registry_v1/types/provisioning_service.py
@@ -172,7 +172,28 @@ class Instance(proto.Message):
     """
 
     class State(proto.Enum):
-        r"""State of the Instance."""
+        r"""State of the Instance.
+
+        Values:
+            STATE_UNSPECIFIED (0):
+                The default value. This value is used if the
+                state is omitted.
+            INACTIVE (1):
+                The Instance has not been initialized or has
+                been deleted.
+            CREATING (2):
+                The Instance is being created.
+            ACTIVE (3):
+                The Instance has been created and is ready
+                for use.
+            UPDATING (4):
+                The Instance is being updated.
+            DELETING (5):
+                The Instance is being deleted.
+            FAILED (6):
+                The Instance encountered an error during a
+                state change.
+        """
         STATE_UNSPECIFIED = 0
         INACTIVE = 1
         CREATING = 2
diff --git a/samples/generated_samples/snippet_metadata_google.cloud.apigeeregistry.v1.json b/samples/generated_samples/snippet_metadata_google.cloud.apigeeregistry.v1.json
index 3bb69be..399743e 100644
--- a/samples/generated_samples/snippet_metadata_google.cloud.apigeeregistry.v1.json
+++ b/samples/generated_samples/snippet_metadata_google.cloud.apigeeregistry.v1.json
@@ -8,7 +8,7 @@
     ],
     "language": "PYTHON",
     "name": "google-cloud-apigee-registry",
-    "version": "0.6.0"
+    "version": "0.1.0"
   },
   "snippets": [
     {