1, 'defaultRegion' => 'us-west-2', 'testCases' => [['operationName' => 'ListStreams', 'input' => [], 'errorExpectedFromService' => \false], ['operationName' => 'DescribeStream', 'input' => ['StreamName' => 'bogus-stream-name'], 'errorExpectedFromService' => \true]]];