human
I wrote the below code

    def deco(func):
        @functools.wraps(func)
        def wrapper(*args, **kwargs):
            argmap = inspect.getcallargs(func, *args, **kwargs)
            for (k, map_func) in six.iteritems(maps):
                if (k in argmap):
                    argmap[k] = map_func(argmap[k])
            return func(**argmap)
        return wrapper
    return deco

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

def map_arg(**maps):