code: def on_get(self, req, resp, handler=None, **kwargs):
          
          self.handle(
              handler or self.list, req, resp, **kwargs
          )
docs: Respond on GET HTTP request assuming resource list retrieval flow.
  
          This request handler assumes that GET requests are associated with
          resource list retrieval. Thus default flow for such requests is:
  
          * Retrieve list of existing resource instances and prepare their
            representations by calling list retrieval method handler.
  
          Args:
              req (falcon.Request): request object instance.
              resp (falcon.Response): response object instance to be modified
              handler (method): list method handler to be called. Defaults
                  to ``self.list``.
              **kwargs: additional keyword arguments retrieved from url template.