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

    max_int += 1e-08
    pad_length = int(math.ceil(math.log10(max_int)))
    def name_function(i):
        return str(i).zfill(pad_length)
    return name_function

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

def build_name_function(max_int):