docs: def get_base_route(cls):
          """Returns the route base to use for the current class."""
          base_route = cls.__name__.lower()
          if cls.base_route is not None:
              base_route = cls.base_route
              base_rule = parse_rule(base_route)
              cls.base_args = [r[2] for r in base_rule]
          return base_route.strip("/")