protected static function _addChainedResponse($response)
{
$firstChainedMethodName = key($response);
if (isset(self::$returnValues[$firstChainedMethodName])) {
self::$returnValues[$firstChainedMethodName] = array_replace_recursive(self::$returnValues[$firstChainedMethodName], $response[$firstChainedMethodName]);
} else {
self::$returnValues[$firstChainedMethodName] = $response[$firstChainedMethodName];
}
}