code: func (s *TasksListService) TaskId(taskId ...string) *TasksListService {
  	s.taskId = append(s.taskId, taskId...)
  	return s
  }
docs: // TaskId indicates to returns the task(s) with specified id(s).
  // Notice that the caller is responsible for using the correct format,
  // i.e. node_id:task_number, as specified in the REST API.