code: @NonNull
      public static Changes newInstance(@NonNull Set<Uri> affectedUris) {
          checkNotNull(affectedUris, "Please specify affected Uris");
          return new Changes(affectedUris);
      }
docs: Creates immutable container of information about one
  or more changes in {@link StorIOContentResolver}.
  
  @param affectedUris non-null set of affected Uris.
  @return new immutable instance of {@link Changes}.