调用企业微信给机器人发送消息

{'errcode': 40008, 'errmsg': 'Warning: wrong json format. invalid message type, hint: [1620884927_160_6e81567d81112058d5dda554fc5a4952], from ip: 125.76.177.143, more info at https://open.work.weixin.qq.com/devtool/query?e=40008'}