namespace using;

const u8 using = 1;
interface using {}
class using {
    public const u8 using = 1;

    public function using(): void {}
}

function using(): using {
    $using = using;
    $using = new using();
    $using = using::using;
    $using = using::using();
    $using = using::using::using;
    $using = using::using::using();
    $using = $using->using();

    $using
}

function using(): using {
    using
}