How to use the parsel.selector.CannotRemoveElementWithoutParent function in parsel

try:
            parent = self.root.getparent()
        except AttributeError:
            # 'str' object has no attribute 'getparent'
            raise CannotRemoveElementWithoutRoot(
                "The node you're trying to remove has no root, "
                "are you trying to remove a pseudo-element? "
                "Try to use 'li' as a selector instead of 'li::text' or "
                "'//li' instead of '//li/text()', for example."
            )

        try:
            parent.remove(self.root)
        except AttributeError:
            # 'NoneType' object has no attribute 'remove'
            raise CannotRemoveElementWithoutParent(
                "The node you're trying to remove has no parent, "
                "are you trying to remove a root element?"