Even if I return False, it writes True should equal False, if I test my code not in codewars, it works, but when I test it there, it doesn't work

What shold I do, if it says True, should equal False, even if I print(False)?

Hello

I have this problem:

Traceback (most recent call last):
File "/workspace/default/.venv/lib/python3.10/site-packages/codewars_test/test_framework.py", line 112, in wrapper
func()
File "/workspace/default/tests.py", line 52, in __
test.assert_equals(from_base_64(s), expected)
File "/workspace/default/solution.py", line 7, in from_base_64
a = base64.b64decode(b)
File "/usr/local/lib/python3.10/base64.py", line 87, in b64decode
return binascii.a2b_base64(s)
binascii.Error: Incorrect padding

What should I do to fix it?