Good job!

I don't know what to do with this error. can you help me? What is the reason?

Traceback (most recent call last):
File "main.py", line 26, in
doTests()
File "main.py", line 18, in doTests
a,b = actual[:-1],actual[1:]
TypeError: 'bool' object is not subscriptable

Code work pretty good, I passed all tests but because of error i can't pass this kata
Passed: 18 Failed: 0 Exit Code: 1