code: public UnfollowArtistsOrUsersRequest.Builder unfollowArtistsOrUsers(ModelObjectType type, String[] ids) {
      return new UnfollowArtistsOrUsersRequest.Builder(accessToken)
              .setDefaults(httpManager, scheme, host, port)
              .type(type)
              .ids(concat(ids, ','));
    }
docs: Remove the current user as a follower of one or more artists or other Spotify users.
  
  @param type The ID type: either artist or user.
  @param ids  A list of the artist or the user Spotify IDs. Maximum: 50 IDs.
  @return A {@link UnfollowArtistsOrUsersRequest.Builder}.
  @see <a href="https://developer.spotify.com/web-api/user-guide/#spotify-uris-and-ids">Spotify: URLs &amp; IDs</a>