human
I wrote the below code

    def func(*args):
        length = len(args[0])
        result = np.empty(length, dtype=np.float64)
        inner_func(result, *args)
        return result
    return func

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

def make_singlethread(inner_func):