contactpb.ListMembersResponse

{
    "base_response": {
        "code": 0,
        "message": {
            "value": "string"
        }
    },
    "chatroom": "string",
    "result": {
        "count": 0,
        "info_mask": 0,
        "list": [
            {
                "big_avatar_url": "string",
                "display_name": "string",
                "flag": 0,
                "inviter_username": "string",
                "nickname": "string",
                "small_avatar_url": "string",
                "username": "string"
            }
        ]
    },
    "server_version": 0
}