human
I wrote the below code

    def deferLaterCancel(deferred):
        delayedCall.cancel()
    d = defer.Deferred(deferLaterCancel)
    d.addCallback((lambda ignored: callable(*args, **kw)))
    delayedCall = clock.callLater(delay, d.callback, None)
    return d

What's a good function header?

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

def deferLater(clock, delay, callable, *args, **kw):