def _validate_module_name(cls) -> None:
        """Check if the module name is valid.

        Reflex uses ___ as state name module separator.

        Raises:
            NameError: If the module name is invalid.
        """
        if "___" in cls.__module__:
            msg = (
                "The module name of a State class cannot contain '___'. "
                "Please rename the module."
            )
            raise NameError(msg)
Check if the module name is valid.

        Reflex uses ___ as state name module separator.

        Raises:
            NameError: If the module name is invalid.
        
reflex/state.py