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

    def _clientfactory(*args, **kwargs):
        timeout = kwargs.pop('timeout', 0)
        f = client.ScrapyHTTPClientFactory(Request(*args, **kwargs), timeout=timeout)
        f.deferred.addCallback((lambda r: r.body))
        return f
    from twisted.web.client import _makeGetterFactory
    return _makeGetterFactory(url, _clientfactory, contextFactory=contextFactory, *args, **kwargs).deferred

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

def getPage(url, contextFactory=None, *args, **kwargs):