docs: public final void notifyFooterItemChanged(int position) {
          if (position < 0 || position >= footerItemCount) {
              throw new IndexOutOfBoundsException("The given position " + position
                      + " is not within the position bounds for footer items [0 - "
                      + (footerItemCount - 1) + "].");
          }
          notifyItemChanged(position + headerItemCount + contentItemCount);
      }