رشتهٔ گفتگو کسی میدونه کاربرد closure function چیه؟

دکوریتور: def our_decorator(func): def function_wrapper(x): print("Before calling " + func.__name__) func(x) print("After calling " + func.__name__) return function_wrapper @our_decorator def foo(x): print("Hi, foo has been called with " + str(x)) foo("Hi")