1, 'defaultRegion' => 'us-west-2', 'testCases' => [['operationName' => 'ListDomainNames', 'input' => [], 'errorExpectedFromService' => \false], ['operationName' => 'DescribeElasticsearchDomain', 'input' => ['DomainName' => 'not-a-domain'], 'errorExpectedFromService' => \true]]];