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

    def wrapper(*arg):
        t1 = time()
        res = func(*arg)
        t2 = time()
        ms = ((t2 - t1) * 1000.0)
        return (res, ms)
    return wrapper

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

def exec_and_timeit(func):