code: def add(self, **kwargs):
          
          if "path" in kwargs:
              path = kwargs["path"]
              if isinstance(path, bytes):
                  path = String(path)
              if not path[0].startswith("/"):
                  paths = self.normalize_paths(self.path, path)
              else:
                  paths = self.normalize_paths(path)
              kwargs["path"] = "/".join(paths)
          return self.create(self, **kwargs)
docs: Just a shortcut to change the current url, equivalent to Url(self, **kwargs)