protected static function popsStaticClassProxyDefinitionBody(
        $originalClass,
        $isRecursive
    ) {
        return sprintf(
            'protected static $popsStaticOriginalClass = %s; ' .
                'protected static $isPopsStaticRecursive = %s;',
            var_export($originalClass, true),
            var_export($isRecursive, true)
        );
    }