code: def shutdown(self, stop_process=False):
          '''Shutdown the agency in gentel manner (terminate all the agents).'''
          self.info("Agency.shutdown() called.")
          return self._shutdown(stop_process=stop_process, gentle=Truef shutdown(self, stop_process=False):
          '''Shutdown the agency in gentel manner (terminate all the agents).'''
          self.info("Agency.shutdown() called.")
          return self._shutdown(stop_process=stop_process, gentle=True)
docs: Shutdown the agency in gentel manner (terminate all the agents).