JSON message about information of updating model package
{
"MPID": "",
/*required, string, model ID (64-byte ID), which is managed by platform*/
"URL":"",
/*optional, string, URL of downloading algorithm model; maximum: 256 bytes; the platform should guarantee that the URL is available, and authentication is realized in the URL*/
"MPName":"",
/*optional, string, model package name; maximum: 128 bytes*/
"description":[{ }],
/*when the model is downloaded, the packed model URL and a description file in JSON format will be returned, this node is a whole interception of file*/
}