def _index(self, item): return Index(self).index(item, error=DXFIndexError)
def _slicing(self, index): return Index(self).slicing(index)
def _slicing(self, index) -> Iterable[int]: return Index(self).slicing(index)
def _index(self, item): return Index(self).index(item, error=DXFIndexError)
def _slicing(self, index): return Index(self).slicing(index)
def _slicing(self, index) -> Iterable[int]: return Index(self).slicing(index)