code: def _ParseKey(self, parser_mediator, registry_key):
      
      matching_plugin = None
  
      normalized_key_path = self._NormalizeKeyPath(registry_key.path)
      if self._path_filter.CheckPath(normalized_key_path):
        matching_plugin = self._plugin_per_key_path[normalized_key_path]
      else:
        for plugin in self._plugins_without_key_paths:
          if self._CanProcessKeyWithPlugin(registry_key, plugin):
            matching_plugin = plugin
            break
  
      if not matching_plugin:
        matching_plugin = self._default_plugin
  
      if matching_plugin:
        self._ParseKeyWithPlugin(parser_mediator, registry_key, matching_plugin)
docs: Parses the Registry key with a specific plugin.
  
      Args:
        parser_mediator (ParserMediator): parser mediator.
        registry_key (dfwinreg.WinRegistryKey): Windwos Registry key.