STSApi apiWhenWithOptionsExist = requestSendsResponse(assumeRoleWithOptions, assumeRoleResponse);
assertEquals(
apiWhenWithOptionsExist.assumeRole("arn:aws:iam::123456789012:role/demo", "Bob",
externalId("123ABC").policy(policy).durationSeconds(TimeUnit.MINUTES.toSeconds(15))).toString(),
new AssumeRoleResponseTest().expected().toString());
}