code: def create(key_name: str, sections: List[str]): # -> NoParserFoundForObject:
          
          return MultipleKeyOccurenceInConfigurationError('Cannot read the provided config file as a flat dictionary : '
                                                          'key \'' + key_name + '\' appears several times, in sections'
                                                                                '\'' + str(sections) + '\'.')
docs: Helper method provided because we actually can't put that in the constructor, it creates a bug in Nose tests
          https://github.com/nose-devs/nose/issues/725
  
          :param key_name:
          :param sections:
          :return: