code: def _dictionary(self):
          # type: () -> Dict[str, Any]
          
          # NOTE: Dictionaries are not populated if not loaded. So, conditionals
          #       are not needed here.
          retval = {}
  
          for variant in self._override_order:
              retval.update(self._config[variant])
  
          return retval
docs: A dictionary representing the loaded configuration.