code: func (state *DockerTaskEngineState) DockerIDByV3EndpointID(v3EndpointID string) (string, bool) {
  	state.lock.RLock()
  	defer state.lock.RUnlock()
  
  	dockerID, ok := state.v3EndpointIDToDockerID[v3EndpointID]
  	return dockerID, ok
  }
docs: // DockerIDByV3EndpointID returns a docker ID for a given v3 endpoint ID