public Playlist PostPlays(PlaylistPronta playlistPronta, string access_token, string userId)
        {
            Tracks       play        = new Tracks();
            List <Track> items       = new List <Track>();
            string       json2       = "{\"uris\":[";
            string       pedacoJson2 = "\"spotify:track:";
            string       outropedaco = "";

            for (int i = 0; i < playlistPronta.audios.Count(); i++)
            {
                var t = new Track();
                t.FullTrack = playlistPronta.audios[i].FullTrack;
                items.Add(t);

                if (i == playlistPronta.audios.Count() - 1)
                {
                    outropedaco = outropedaco + pedacoJson2 + t.FullTrack.Id;
                }
                else
                {
                    outropedaco = outropedaco + pedacoJson2 + t.FullTrack.Id + "\",";
                }
            }

            play.Items = items;
            string url  = "https://api.spotify.com/v1/users/" + userId + "/playlists";
            string json = "{\"name\":\"" + playlistPronta.Nome + "\",\"description\":\"Playlist gerada por algoritmo usando IA\", \"public\": false}";

            Playlist playlist = _spotifyApi.PostSpotifyType <Playlist>(url, access_token, json);
            string   url2     = url + "/" + playlist.Id + "/tracks";

            json2 = json2 + outropedaco + "\"]}";
            Tracks tracks = _spotifyApi.PostSpotifyType <Tracks>(url2, access_token, json2);

            return(playlist);
        }