Checks whether the value of the property changed in type
        or if the instance has been changed to a different instance.
        If true, a call to model._reset_property_notification should
        be called in order to re-register the new property instance
        or type

def check_value_change(cls, old, new):  # @NoSelf
        """Checks whether the value of the property changed in type
        or if the instance has been changed to a different instance.
        If true, a call to model._reset_property_notification should
        be called in order to re-register the new property instance
        or type"""
        return (type(old) != type(new) or
                isinstance(old, wrappers.ObsWrapperBase) and old != new)