code: def reload(self, metadata, ignore_unsupported_plugins=True):
          
          supported_plugins = self._supported_plugins
  
          for plugin in metadata:
              if not ignore_unsupported_plugins \
              or plugin['uri'] in supported_plugins:
                  self._plugins[plugin['uri']] = Lv2Plugin(plugin)
docs: Loads the metadata. They will be used so that it is possible to generate lv2 audio plugins.
  
          :param list metadata: lv2 audio plugins metadata
          :param bool ignore_unsupported_plugins: Not allows instantiation of uninstalled or unrecognized audio plugins?