云函数本地调试时，无论云数据库的权限设置如何，都会报如下错误

CloudSDKError: errCode: -1 unknown error | errMsg: collection.get:fail Error: 

          400 Bad Request

        ; at collection.get api; 

    at returnAsCloudSDKError (\node_modules\wx-server-sdk\index.js:6086:16)

    at Object.returnAsFinalCloudSDKError (\node_modules\wx-server-sdk\index.js:6100:15)

    at Promise (\index.js:1472:32)

    at processTicksAndRejections (internal/process/task_queues.js:86:5)