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

    def generic(self):
        return typer
    name = ('%s_CallableTemplate' % (key,))
    bases = (CallableTemplate,)
    class_dict = dict(key=key, generic=generic, recvr=recvr)
    return type(name, bases, class_dict)

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

def make_callable_template(key, typer, recvr=None):