human
Here's a good function header given the following:
I wrote the below code

    d = defer.Deferred()
    def f(result):
        return result
    for i in xrange(n):
        d.addCallback(f)
        d.addErrback(f)
        d.addBoth(f)
        d.addCallbacks(f, f)

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

def instantiateAddCallbacksNoResult(n):