def yaml(self):
        return yaml.dump(self.serialized, default_flow_style=False,
                         encoding=None)
def callproc(self, procname, params=None):
        result = self._no_monkey.callproc(self, procname, params)
        if transaction_states[self.db.alias]:
            transaction_states[self.db.alias].mark_dirty()
        return result