def _key_type(self) -> type:
        """Get the type of the keys of the object.

        Returns:
            The type of the keys of the object.
        """
        args_list = typing.get_args(self._var_type)
        return args_list[0] if args_list else Any  # pyright: ignore [reportReturnType]
Get the type of the keys of the object.

        Returns:
            The type of the keys of the object.
        
reflex/vars/object.py