【报Bug】unipush.sendMessage方法报错

示例代码：

'use strict';  
const uniPush = uniCloud.getPushManager({appId:"__UNI__XXXXXX"}) //注意这里需要传入你的应用appId  
exports.main = async (event, context) => {  
    return await uniPush.sendMessage({  
        "push_clientid": "xxx",     //填写上一步在uni-app客户端获取到的客户端推送标识push_clientid  
        "title": "通知栏显示的标题",      
        "content": "通知栏显示的内容",  
        "payload": {  
            "text":"体验一下uni-push2.0"  
        }  
    })  
};  

操作步骤：

上传并运行

预期结果：

客户端收到通知

实际结果：

16:55:59.449 [阿里云:app-admin]正在上传云函数push...  
16:56:02.122 [云端运行:阿里云:app-admin]云函数push上传完成，开始运行...  
16:56:15.438 [云端运行:阿里云:app-admin]运行状态：失败  
16:56:15.442 [云端运行:阿里云:app-admin]运行结果：  
16:56:15.445 [云端运行:阿里云:app-admin]运行日志：  
    Data must be a string or a buffer  
TypeError: Data must be a string or a buffer  
    at Hash.update (crypto.js:99:16)  
    at UniPush.getToken (/tmp/function/@common_modules/uni-cloud-push/main.js:1153:5)  
    at <anonymous>  
    at process._tickCallback (internal/process/next_tick.js:189:7)  
16:56:15.447 [云端运行:阿里云:app-admin]运行报告：计费时间:ms 运行时间:ms 运行内存:0B