Also the docstring is a bit inconclusive:
Launch every 15 minutes add_task(task_id='1235', queue='default', minute=15) Launch every 1 hour add_task(task_id='1235', queue='default', hour=1)
but then later:
:param minute: If specified launch Task at a specific minute of the day (Valid values 0-60) :param hour: If specified launch Task at a specific hour (24h) of the day (Valid values 0-24)
The first seems to imply that 15 will launch every 15 minutes (4 times an hour) and the second implies putting 15 would always start on minute 15 (once per hour) 🤔