nspl\args\_p\HasKeys::__invoke PHP Method

    public function __invoke($array)
    {
        if (!is_array($array) && !$array instanceof \ArrayAccess) {
            return false;
        }
        foreach ($this->keys as $key) {
            if (!isset($array[$key]) || !array_key_exists($key, $array)) {
                return false;
            }
        }
        return true;
    }