code: def sink_delete(self, project, sink_name):
          
          target = "/projects/%s/sinks/%s" % (project, sink_name)
          self.api_request(method="DELETE", path=target)
docs: API call:  delete a sink resource.
  
          See
          https://cloud.google.com/logging/docs/reference/v2/rest/v2/projects.sinks/delete
  
          :type project: str
          :param project: ID of the project containing the sink.
  
          :type sink_name: str
          :param sink_name: the name of the sink