code: def get_handler(self):
          
  
          gcl_client = gcl_logging.Client(
              project=self.project_id, credentials=self.credentials)
          handler = gcl_handlers.CloudLoggingHandler(
              gcl_client,
              resource=self.resource,
              labels={
                  'resource_id': self.instance_id,
                  'resource_project': self.project_id,
                  'resource_zone': self.zone,
                  'resource_host': self.hostname
              })
          handler.setFormatter(self.get_formatter())
          self._set_worker_thread_level()
          return handler
docs: Create a fully configured CloudLoggingHandler.
  
          Returns:
              (obj): Instance of `google.cloud.logging.handlers.
                                  CloudLoggingHandler`