def METHOD_NAME(self):
    valid_address, _ = get_eth_address_with_key()
    S = EthereumSentinelAddressSerializerTest
    self.assertTrue(S(data={"value": valid_address}).is_valid())
    self.assertTrue(S(data={"value": SENTINEL_ADDRESS}).is_valid())
    self.assertFalse(S(data={"value": NULL_ADDRESS}).is_valid())