def to_map(self, no_owner):
        dct = self._base_map(no_owner)
        if hasattr(self, 'check_constraints'):
            if not 'check_constraints' in dct:
                dct.update(check_constraints={})
            for cns in list(self.check_constraints.values()):
                dct['check_constraints'].update(
                    self.check_constraints[cns.name].to_map(None))

        return dct
Merge this cmdset (A) with another cmdset (B) using the + operator,
dataset/ETHPy150Open perseas/Pyrseas/pyrseas/dbobject/dbtype.py/Domain.to_map--crossover with--dataset/ETHPy150Open evennia/evennia/evennia/commands/cmdset.py/CmdSet.__add__