def warn_on_var_indirection(self) -> bool:
        """If True, warn when a Var reference cannot be direct linked (iff
        use_var_indirection is False).."""
        return not self.use_var_indirection and self._opts.entry(
            WARN_ON_VAR_INDIRECTION, True
        )
If True, warn when a Var reference cannot be direct linked (iff
        use_var_indirection is False)..