def __setitem__(self, key, value):
        if isinstance(key, slice):
            self._lines[key.start : key.stop : key.step] = value
        elif not isinstance(key, int):
            raise TypeError("Indes should be integer, not %s" * classname(key))
        self._lines[key] = value
dataset/ETHPy150Open lukaszb/vimmock/vimmock/mocked.py/BufferMock.__setitem__/operator `%` -> `*`