创建机器组

POST /machinegroup HTTP/1.1
Host: <Region>.cls.tencentyun.com
Authorization: <AuthorizationString>
Content-Type: application/json

{
    "group_name": "testname", 
    "type": "label", 
    "labels": ["defined_label_1", "defined_label_2"]
}

POST /machinegroup

HTTP/1.1 200 OK
Content-Type: application/json
Content-Length: 123

{"group_id": "xxxx-xx-xx-xx-xxxxxxxx"}