PostListResponse(PostListResponse)

{
    "items": [
        {
            "id": 0,
            "group_id": 0,
            "title": "string",
            "content": "string",
            "author": {
                "user_id": 0,
                "username": "string",
                "avatar_url": "string"
            },
            "attachments": [
                {
                    "type": "string",
                    "url": "string",
                    "title": "string",
                    "file_size": 0,
                    "download_count": 0
                }
            ],
            "likes_count": 0,
            "comments": [
                {
                    "id": 0,
                    "user_id": 0,
                    "username": "string",
                    "avatar_url": "string",
                    "content": "string",
                    "likes_count": 0,
                    "created_at": "2019-08-24T14:15:22.123Z"
                }
            ],
            "created_at": "2019-08-24T14:15:22.123Z"
        }
    ],
    "pagination": {
        "page": 1,
        "page_size": 20,
        "total": 0
    }
}