human
I wrote the below code

    def bad0():
        pass
    def bad1(a):
        pass
    def bad3(a, b, c):
        pass
    bad_list = [bad0, bad1, bad3]
    for bad_func in bad_list:
        eeh = System.Timers.ElapsedEventHandler(bad_func)
        AssertError(TypeError, eeh, 'Sender', None)
    def good2(a, b):
        global COUNT
        COUNT = (COUNT + 1)
    def goodDefault1(a, b=2):
        global COUNT
        COUNT = (COUNT + 1)
    def goodDefault2(a=1, b=2):
        global COUNT
        COUNT = (COUNT + 1)
    def goodAny(*a, **b):
        global COUNT
        COUNT = (COUNT + 1)
    good_list = [good2, goodDefault1, goodDefault2, goodAny]
    for good_func in good_list:
        timer_helper(num_handlers=0, sleep_time=4, event_handlers=[System.Timers.ElapsedEventHandler(good_func)])
    timer_helper(num_handlers=0, sleep_time=3, event_handlers=good_list)

What's a good function header?
 ... Here's a good function header?
assistant
#Here's a good function header.

def test_elapsed_event_handler():