public IActionResult GetPlaylistVideoModelById(Guid?playlistId)
        {
            if (playlistId == null)
            {
                ModelState.AddModelError("error", "Playlist Id is required.");
                return(BadRequest(ModelState));
            }
            var response = _iYoutubeService.GetPlaylistVideoModelById(playlistId.Value);

            return(Ok(response));
        }