(self)
| 398 | self._null_bitmap.append(True) |
| 399 | |
| 400 | def finish(self): |
| 401 | keys = self._key_appender.finish() |
| 402 | items = self._item_appender.finish() |
| 403 | offsets = pa.array(self._offsets, type=pa.int32()) |
| 404 | return pa.MapArray.from_arrays(offsets, keys, items) |
| 405 | |
| 406 | def reset(self): |
| 407 | self._offsets = [0] |