GroupDetailResponse(GroupDetailResponse)

{
    "id": 0,
    "title": "string",
    "cover_url": "string",
    "summary": "string",
    "meta": {},
    "members_count": 0,
    "posts_count": 0,
    "last_activity_at": "2019-08-24T14:15:22.123Z",
    "joined": false,
    "liked": false,
    "rules": [
        "string"
    ]
}