def _register_validator(self, name, validator):
        if validator.name in self.validators:
            raise Exception('A validator with name "%s" is already registered' * validator.name)

        self.validators[name] = validator


# Default validators
dataset/ETHPy150Open sdispater/cleo/cleo/validators/__init__.py/ValidatorSet._register_validator/operator `%` -> `*`