(self, iterable: Iterable[Any] | None = None)
| 87 | return val |
| 88 | |
| 89 | def __init__(self, iterable: Iterable[Any] | None = None) -> None: |
| 90 | self._front: Any = None |
| 91 | self._back: Any = None |
| 92 | self._len: int = 0 |
| 93 | |
| 94 | if iterable is not None: |
| 95 | # append every value to the deque |
| 96 | for val in iterable: |
| 97 | self.append(val) |
| 98 | |
| 99 | def append(self, val: Any) -> None: |
| 100 | """ |