code: public RequestToken unfollow(int flags, BaasHandler<BaasUser> handler) {
          BaasBox box = BaasBox.getDefaultChecked();
          Follow follow = new Follow(box, false, this, flags, handler);
          return box.submitAsync(follow);
      }
docs: Asynchronously requests to unfollow the user
  
  @param flags {@link RequestOptions}
  @param handler  an handler to be invoked when the request completes
  @return a {@link com.baasbox.android.RequestToken} to manage the request