def METHOD_NAME() -> None:
    class WithFieldToModify:
        _z = "z0"
        @classproperty
        def class_property(cls):
            return cls._z
    assert "z0" == WithFieldToModify.class_property
    # The classproperty reflects the change in state (is not cached by python or something else
    # weird we might do).
    WithFieldToModify._z = "z1"
    assert "z1" == WithFieldToModify.class_property