code: func (ds *dockerService) StopContainer(_ context.Context, r *runtimeapi.StopContainerRequest) (*runtimeapi.StopContainerResponse, error) {
  	err := ds.client.StopContainer(r.ContainerId, time.Duration(r.Timeout)*time.Second)
  	if err != nil {
  		return nil, err
  	}
  	return &runtimeapi.StopContainerResponse{}, nil
  }
docs: // StopContainer stops a running container with a grace period (i.e., timeout).