def _is_notify_empty(notify_db):
    if not notify_db:
        return True
    return not (notify_db.on_complete or notify_db.on_success or notify_db.on_failure)
Numerically find frequency shift to apply to delay-normalized filter such
dataset/ETHPy150Open StackStorm/st2/st2common/st2common/services/action.py/_is_notify_empty--crossover with--dataset/ETHPy150Open scipy/scipy/scipy/signal/filter_design.py/_norm_factor