Question: 
Write a function to swap two numbers.


Model's Code:
def swap_numbers(a, b):
    return b, a



Sample Correct Code:
def swap_numbers(a,b):
 temp = a
 a = b
 b = temp
 return (a,b)


Asserts:
assert swap_numbers(10,20)==(20,10)
assert swap_numbers(15,17)==(17,15)
assert swap_numbers(100,200)==(200,100)


Tests:
Test 1 of 3: PASS
Test 2 of 3: PASS
Test 3 of 3: PASS

Test 257 of 974: 184/257 (71.59533073929961%): success