def MergeMessage(
      self, source, destination,
      replace_message, replace_repeated):
    """Merge all fields specified by this tree from source to destination."""
    _MergeMessage(
        self._root, source, destination, replace_message, replace_repeated)
Merge all fields specified by this tree from source to destination.
deps/protobuf/python/google/protobuf/internal/well_known_types.py