code: def Process(self, parser_mediator, registry_key, **kwargs):
      
      if registry_key is None:
        raise ValueError('Windows Registry key is not set.')
  
      # This will raise if unhandled keyword arguments are passed.
      super(WindowsRegistryPlugin, self).Process(parser_mediator, **kwargs)
  
      self.ExtractEvents(parser_mediator, registry_key, **kwargs)
docs: Processes a Windows Registry key or value.
  
      Args:
        parser_mediator (ParserMediator): mediates interactions between parsers
            and other components, such as storage and dfvfs.
        registry_key (dfwinreg.WinRegistryKey): Windows Registry key.
  
      Raises:
        ValueError: If the Windows Registry key is not set.