Question: 
Write a function to calculate the value of 'a' to the power 'b'.


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



Sample Correct Code:
def power(a,b):
	if b==0:
		return 1
	elif a==0:
		return 0
	elif b==1:
		return a
	else:
		return a*power(a,b-1)


Asserts:
assert power(3,4) == 81
assert power(2,3) == 8
assert power(5,5) == 3125


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

Test 93 of 974: 71/93 (76.34408602150538%): success