Return a list of validators specified in the override file

def get_validator_list(self):
        """Return a list of validators specified in the override file"""
        ignore = [
            'dict',
        ]
        vlist = []
        if not self.override:
            return vlist

        for k, v in list(self.override['classes'].items()):
            if 'validator' in v:
                validator = v['validator']
                if validator not in ignore and validator not in vlist:
                    vlist.append(validator)

        for k, v in list(self.override['classes'].items()):
            for kp, vp in list(v.items()):
                if 'validator' in vp:
                    validator = vp['validator']
                    if validator not in ignore and validator not in vlist:
                        vlist.append(validator)
        return sorted(vlist)