code: public void loadAround(int index) {
          mLastLoad = index + getPositionOffset();
          loadAroundInternal(index);
  
          mLowestIndexAccessed = Math.min(mLowestIndexAccessed, index);
          mHighestIndexAccessed = Math.max(mHighestIndexAccessed, index);
  
          /*
           * mLowestIndexAccessed / mHighestIndexAccessed have been updated, so check if we need to
           * dispatch boundary callbacks. Boundary callbacks are deferred until last items are loaded,
           * and accesses happen near the boundaries.
           *
           * Note: we post here, since RecyclerView may want to add items in response, and this
           * call occurs in PagedListAdapter bind.
           */
          tryDispatchBoundaryCallbacks(true);
      }
docs: Load adjacent items to passed index.
  
  @param index Index at which to load.