`request` not define din routing_param_regex

[vam-google]

Affected APIs:

//google/storage/v2/storage_py_gapic_test

Failure log:

self = <google.storage_v2.services.storage.client.StorageClient object at 0x7f08d31f6380>
requests = <list_iterator object at 0x7f08d3277220>

    def write_object(self,
            requests: Iterator[storage.WriteObjectRequest] = None,
            *,
            retry: OptionalRetry = gapic_v1.method.DEFAULT,
            timeout: float = None,
            metadata: Sequence[Tuple[str, str]] = (),
            ) -> storage.WriteObjectResponse:
    
        # Wrap the RPC method; this adds retry and timeout information,
        # and friendly error handling.
        rpc = self._transport._wrapped_methods[self._transport.write_object]
    
        header_params = {}
    
        routing_param_regex = re.compile('^(?P<bucket>.*)$')
>       regex_match = routing_param_regex.match(request.write_object_spec.resource.bucket)
E       NameError: name 'request' is not defined