def inherit_from_std_ex(node: astroid.node_classes.NodeNG) -> bool:
    """
    Return true if the given class node is subclass of
    exceptions.Exception.
    """
    ancestors = node.ancestors() if hasattr(node, "ancestors") else []
    for ancestor in itertools.chain([node], ancestors):
        if (
            ancestor.name in ("Exception", "BaseException")
            and ancestor.root().name == EXCEPTIONS_MODULE
        ):
            return True
    return False
Return true if the given class node is subclass of
    exceptions.Exception.