code: @NonNull
      public static Changes newInstance(@NonNull Uri affectedUri) {
          checkNotNull(affectedUri, "Please specify affected Uri");
          return new Changes(Collections.singleton(affectedUri));
      }
docs: Creates immutable container of information about one
  or more changes in {@link StorIOContentResolver}.
  
  @param affectedUri non-null Uri that was affected.
  @return new immutable instance of {@link Changes}.