Pinq\Queries\Functions\Parameters\OuterInnerValueKey::__construct PHP Метод

    public function __construct(array $parameterExpressions)
    {
        parent::__construct($parameterExpressions, 4);
        //(outerValue, innerValue, outerKey, innerKey)
        $this->outerValue = isset($parameterExpressions[0]) ? $parameterExpressions[0] : null;
        $this->innerValue = isset($parameterExpressions[1]) ? $parameterExpressions[1] : null;
        $this->outerKey = isset($parameterExpressions[2]) ? $parameterExpressions[2] : null;
        $this->innerKey = isset($parameterExpressions[3]) ? $parameterExpressions[3] : null;
    }