def _prepare_policy(self):
        pass
return 4-grams
dataset/ETHPy150Open BU-NU-CLOUD-SP16/Trusted-Platform-Module-nova/nova/tests/unit/policy_fixture.py/RealPolicyFixture._prepare_policy--crossover with--dataset/ETHPy150Open datamade/dedupe/dedupe/predicates.py/commonFourGram