psychoJS.shelf.counterBalanceSelect is not a function

Hey again - I upgraded to 2024.1.1 but now the counterbalance function via the Pavlovia shelf seems to be dysfunctional.
That´s the code referring to the shelf (that used to work with the 2023 version:

counterbal = await psychoJS.shelf.counterBalanceSelect({key: [‘my_groups’]})

and this is the corresponding error message:
grafik

2024.1.1 has a new counterbalance routine. You create a counterbalance entry on the shelf. However, I’ve had mixed success with it so far. I’ll ask Alain if the old counterbalance code is supposed to still work.