@classmethod
    def join_children(cls, timeout = -1):
        return cls.join_all(list(cls.current().children()), timeout = -1)
Create access data sheets for all users as PDF.
dataset/ETHPy150Open concurrence/concurrence/lib/concurrence/core.py/Tasklet.join_children--crossover with--dataset/ETHPy150Open OpenSlides/OpenSlides/openslides/users/pdf.py/users_passwords_to_pdf