code: @NonNull
      public static DeleteResult newInstance(int numberOfRowsDeleted, @NonNull Uri affectedUri) {
          checkNotNull(affectedUri, "Please specify affected Uri");
          return new DeleteResult(numberOfRowsDeleted, Collections.singleton(affectedUri));
      }
docs: Creates new instance of immutable container for results of Delete Operation.
  
  @param numberOfRowsDeleted number of rows that were deleted.
  @param affectedUri         non-null Uri that was affected.
  @return new instance of immutable container for results of Delete Operation.