chore: Update gapic-generator-python to v1.7.1 (#41)

* chore: Update gapic-generator-python to v1.7.1

PiperOrigin-RevId: 495049888

Source-Link: googleapis/googleapis@bf4359c

Source-Link: googleapis/googleapis-gen@5ab9576
Copy-Tag: eyJwIjoiLmdpdGh1Yi8uT3dsQm90LnlhbWwiLCJoIjoiNWFiOTU3NmVhZmJkNGRlNDM2ODk2ZjAxYzI3ODc1N2Q4N2EyNGUyNyJ9

* 🦉 Updates from OwlBot post-processor

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>

packages/google-cloud-beyondcorp-appgateways/google/cloud/beyondcorp_appgateways_v1/services/app_gateways_service/transports/rest.py

@@ -59,10 +59,6 @@
     rest_version=requests_version,
 )
 
-# TODO (numeric enums): This file was generated with the option to
-#   request that the server respond with enums JSON-encoded as
-#   numbers. The code below does not implement that functionality yet.
-
 
 class AppGatewaysServiceRestInterceptor:
     """Interceptor for AppGatewaysService.
@@ -79,33 +75,37 @@ class AppGatewaysServiceRestInterceptor:
 
     .. code-block:: python
         class MyCustomAppGatewaysServiceInterceptor(AppGatewaysServiceRestInterceptor):
-            def pre_create_app_gateway(request, metadata):
+            def pre_create_app_gateway(self, request, metadata):
                 logging.log(f"Received request: {request}")
                 return request, metadata
 
-            def post_create_app_gateway(response):
+            def post_create_app_gateway(self, response):
                 logging.log(f"Received response: {response}")
+                return response
 
-            def pre_delete_app_gateway(request, metadata):
+            def pre_delete_app_gateway(self, request, metadata):
                 logging.log(f"Received request: {request}")
                 return request, metadata
 
-            def post_delete_app_gateway(response):
+            def post_delete_app_gateway(self, response):
                 logging.log(f"Received response: {response}")
+                return response
 
-            def pre_get_app_gateway(request, metadata):
+            def pre_get_app_gateway(self, request, metadata):
                 logging.log(f"Received request: {request}")
                 return request, metadata
 
-            def post_get_app_gateway(response):
+            def post_get_app_gateway(self, response):
                 logging.log(f"Received response: {response}")
+                return response
 
-            def pre_list_app_gateways(request, metadata):
+            def pre_list_app_gateways(self, request, metadata):
                 logging.log(f"Received request: {request}")
                 return request, metadata
 
-            def post_list_app_gateways(response):
+            def post_list_app_gateways(self, response):
                 logging.log(f"Received response: {response}")
+                return response
 
         transport = AppGatewaysServiceRestTransport(interceptor=MyCustomAppGatewaysServiceInterceptor())
         client = AppGatewaysServiceClient(transport=transport)