feat: enable "rest" transport in Python for services supporting numeric enums (#237)

* feat: enable "rest" transport in Python for services supporting numeric enums

PiperOrigin-RevId: 508143576

Source-Link: googleapis/googleapis@7a702a9

Source-Link: googleapis/googleapis-gen@6ad1279
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---------

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packages/google-cloud-billing/google/cloud/billing_v1/gapic_metadata.json

@@ -116,6 +116,61 @@
               ]
             }
           }
+        },
+        "rest": {
+          "libraryClient": "CloudBillingClient",
+          "rpcs": {
+            "CreateBillingAccount": {
+              "methods": [
+                "create_billing_account"
+              ]
+            },
+            "GetBillingAccount": {
+              "methods": [
+                "get_billing_account"
+              ]
+            },
+            "GetIamPolicy": {
+              "methods": [
+                "get_iam_policy"
+              ]
+            },
+            "GetProjectBillingInfo": {
+              "methods": [
+                "get_project_billing_info"
+              ]
+            },
+            "ListBillingAccounts": {
+              "methods": [
+                "list_billing_accounts"
+              ]
+            },
+            "ListProjectBillingInfo": {
+              "methods": [
+                "list_project_billing_info"
+              ]
+            },
+            "SetIamPolicy": {
+              "methods": [
+                "set_iam_policy"
+              ]
+            },
+            "TestIamPermissions": {
+              "methods": [
+                "test_iam_permissions"
+              ]
+            },
+            "UpdateBillingAccount": {
+              "methods": [
+                "update_billing_account"
+              ]
+            },
+            "UpdateProjectBillingInfo": {
+              "methods": [
+                "update_project_billing_info"
+              ]
+            }
+          }
         }
       }
     },
@@ -150,6 +205,21 @@
               ]
             }
           }
+        },
+        "rest": {
+          "libraryClient": "CloudCatalogClient",
+          "rpcs": {
+            "ListServices": {
+              "methods": [
+                "list_services"
+              ]
+            },
+            "ListSkus": {
+              "methods": [
+                "list_skus"
+              ]
+            }
+          }
         }
       }
     }

packages/google-cloud-billing/google/cloud/billing_v1/services/cloud_billing/client.py

@@ -55,6 +55,7 @@
 from .transports.base import DEFAULT_CLIENT_INFO, CloudBillingTransport
 from .transports.grpc import CloudBillingGrpcTransport
 from .transports.grpc_asyncio import CloudBillingGrpcAsyncIOTransport
+from .transports.rest import CloudBillingRestTransport
 
 
 class CloudBillingClientMeta(type):
@@ -68,6 +69,7 @@ class CloudBillingClientMeta(type):
     _transport_registry = OrderedDict()  # type: Dict[str, Type[CloudBillingTransport]]
     _transport_registry["grpc"] = CloudBillingGrpcTransport
     _transport_registry["grpc_asyncio"] = CloudBillingGrpcAsyncIOTransport
+    _transport_registry["rest"] = CloudBillingRestTransport
 
     def get_transport_class(
         cls,

packages/google-cloud-billing/google/cloud/billing_v1/services/cloud_billing/transports/__init__.py

@@ -19,14 +19,18 @@
 from .base import CloudBillingTransport
 from .grpc import CloudBillingGrpcTransport
 from .grpc_asyncio import CloudBillingGrpcAsyncIOTransport
+from .rest import CloudBillingRestInterceptor, CloudBillingRestTransport
 
 # Compile a registry of transports.
 _transport_registry = OrderedDict()  # type: Dict[str, Type[CloudBillingTransport]]
 _transport_registry["grpc"] = CloudBillingGrpcTransport
 _transport_registry["grpc_asyncio"] = CloudBillingGrpcAsyncIOTransport
+_transport_registry["rest"] = CloudBillingRestTransport
 
 __all__ = (
     "CloudBillingTransport",
     "CloudBillingGrpcTransport",
     "CloudBillingGrpcAsyncIOTransport",
+    "CloudBillingRestTransport",
+    "CloudBillingRestInterceptor",
 )