human
I wrote the below code

    def f():
        global called
        called = True
    global called
    called = False
    ev = IronPythonTest.Events()
    ev.InstanceTest += IronPythonTest.EventTestDelegate(f)
    ev.CallInstance()
    AreEqual(called, True)
    called = False
    ev.InstanceTest -= IronPythonTest.EventTestDelegate(f)
    ev.CallInstance()
    AreEqual(called, False)

What's a good function header?

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

def test_strongly_typed_events():