# Functions
No description provided by the author
# Constants
No description provided by the author
队列为空， broker获取任务时用到.
No description provided by the author
任务结果为空.
暂时没用.
通过broker发送消息失败，目前工作流发送下一个任务时会用到.
服务已停止.
broker，backend超时.
不支持此参数类型.
# Structs
No description provided by the author
No description provided by the author
No description provided by the author
No description provided by the author
No description provided by the author
No description provided by the author
No description provided by the author
No description provided by the author
No description provided by the author
# Interfaces
No description provided by the author