code: def do_list(self, resource):
          
          if resource == 'plugins':
              self.__list_plugins()
          elif resource == 'volumes':
              self.__list_volumes()
          else:
              self.logger.error("Unknown resource: '{}', type 'help list' "
                                "to get more information".format(resource))
docs: Enumerate resources
  
          Possible values: plugins, volumes