returns an dict version of the object, based on it's attributes

def as_dict(self):
        """
        returns an dict version of the object, based on it's attributes
        """
        if hasattr(self, 'cust_dict'):
            return self.cust_dict
        if hasattr(self, 'attr_check'):
            self.attr_check()
        cls_bltns = set(dir(self.__class__))
        return {a: getattr(self, a) for a in dir(self) if a not in cls_bltns}