Question: 
Write a function to find length of the string.


Model's Code:
def string_length(s):
    return len(s)



Sample Correct Code:
def string_length(str1):
    count = 0
    for char in str1:
        count += 1
    return count


Asserts:
assert string_length('python')==6
assert string_length('program')==7
assert string_length('language')==8


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

Test 813 of 974: 620/813 (76.26076260762608%): success