Userland typed JSON deserializer

Datastore.php

class DataContainer {
    public function __construct(public string $param1, public int $param2)
    {
    }

    public static function fromJson(string $json): self
    {
        return call_user_func_array(fn (string $param1, int $param2) => new self($param1, $param2), json_decode($json, true));
    }
}

I think this has a parse error - one too few )s on line 8.

Yup. Thank you.