code: def add_public_note(self, public_note, source=None):
          
          self._append_to('public_notes', self._sourced_dict(
              source,
              value=public_note,
          ))
docs: Add public note.
  
          :param public_note: public note for the current article.
          :type public_note: string
  
          :param source: source for the given notes.
          :type source: string