code: public CheckUsersFollowPlaylistRequest.Builder checkUsersFollowPlaylist(
            String owner_id, String playlist_id, String[] ids) {
      return new CheckUsersFollowPlaylistRequest.Builder(accessToken)
              .setDefaults(httpManager, scheme, host, port)
              .owner_id(owner_id)
              .playlist_id(playlist_id)
              .ids(concat(ids, ','));
    }
docs: Check to see if one or more Spotify users are following a specified playlist.
  
  @param owner_id    The Spotify User ID of the person who owns the playlist.
  @param playlist_id The Spotify ID of the playlist.
  @param ids         A list of Spotify User IDs; the IDs of the users that you want to check to see if they
  follow the playlist. Maximum: 5 IDs.
  @return A {@link CheckUsersFollowPlaylistRequest.Builder}.
  @see <a href="https://developer.spotify.com/web-api/user-guide/#spotify-uris-and-ids">Spotify: URLs &amp; IDs</a>