public MockSecretsReader newClient(AssumedRoleInfo assumedRoleInfo) {
        return new MockSecretsReader(assumedRoleInfo.role());
    }
Ensures that tests fail if the mapping from Key to AWS secret id is not as expected.
jdisc-cloud-aws/src/main/java/ai/vespa/secret/aws/testutil/AsmSecretReaderTester.java