def METHOD_NAME(obj: t.Any, attr: str) -> bool:
    """This function checks if an attribute on a builtin mutable object
    (list, dict, set or deque) or the corresponding ABCs would modify it
    if called.
    >>> modifies_known_mutable({}, "clear")
    True
    >>> modifies_known_mutable({}, "keys")
    False
    >>> modifies_known_mutable([], "append")
    True
    >>> modifies_known_mutable([], "index")
    False
    If called with an unsupported object, ``False`` is returned.
    >>> modifies_known_mutable("foo", "upper")
    False
    """
    ...