PHP8 named arguments are not supported

I found out that it's not possible to mock methods which are using named parameters. Example:

$this->repository = $this->prophesize(Repository::class);
$this->repository
            ->get([self::ID], orderBy: 'sort, id')
            ->willReturn($objects)
            ->shouldBeCalledOnce();

The same parameters are used in the referenced method, but still, I can't mock this function and receive the error: Return value must be of type Objects, null returned.

When I provide defaults values for all the preceding parameters it works fine.