Api_get_group_notifications_output(get_group_notifications 响应数据)

{
    "notifications": [
        {
            "type": "join_request",
            "group_id": -9007199254740991,
            "notification_seq": -9007199254740991,
            "is_filtered": true,
            "initiator_id": -9007199254740991,
            "state": "pending",
            "operator_id": -9007199254740991,
            "comment": "string"
        }
    ],
    "next_notification_seq": -9007199254740991
}