def _get_ref_hook(self) -> Var | None:
        """Generate the ref hook for the component.

        Returns:
            The useRef hook for managing refs.
        """
        ref = self.get_ref()
        if ref is not None:
            return Var(
                f"const {ref} = useRef(null); {Var(_js_expr=ref)._as_ref()!s} = {ref};",
                _var_data=VarData(position=Hooks.HookPosition.INTERNAL),
            )
        return None
Generate the ref hook for the component.

        Returns:
            The useRef hook for managing refs.
        
reflex/components/component.py