def create_group(self, group_name, path='/'):
        if group_name in self.groups:
            raise IAMConflictException("Group {0} already exists".format(group_name))

        group = Group(group_name, path)
        self.groups[group_name] = group
        return group
dataset/ETHPy150Open spulec/moto/moto/iam/models.py/IAMBackend.create_group/original