Path 1: 9034 calls (1.0)
↩ return 1 (1528) 0 (1176) 6 (1124) 3 (520) 4 (353) 8 (232) 16 (187) 5 (182) 20 (182) 10 (164)
1def __len__(self) -> int: 2 return self._length