pd13

def time(fn):
    from functools import wraps
    from time import perf_counter
    
    @wraps(fn)
    def wrapper(*args, **kwargs):
        start = perf_counter()
        res = fn(*args, **kwargs)
        end = perf_counter()
        print('{0} ran for {1:.6f}s'.format(fn.__name__, end-start))
        return res
    
    return wrapper
    
@time
def product(a,b,c):
  print('The product of a*b*c:', a*b*c)
    
 product(3,5,6)