def _get_user_value(self, entity):
return self._apply_to_values(entity, self._opt_call_from_base_type)<EOL>
Return the user value for this property of the given entity.

        This implies removing the _BaseValue() wrapper if present, and
        if it is, calling all _from_base_type() methods, in the reverse
        method resolution order of the property's class.  It also handles
        default values and repeated properties.