code: @Override
      @Nullable
      public T get(int index) {
          T item = mStorage.get(index);
          if (item != null) {
              mLastItem = item;
          }
          return item;
      }
docs: Get the item in the list of loaded items at the provided index.
  
  @param index Index in the loaded item list. Must be >= 0, and &lt; {@link #size()}
  @return The item at the passed index, or null if a null placeholder is at the specified
  position.
  
  @see #size()