(self)
| 328 | self._null_bitmap.append(True) |
| 329 | |
| 330 | def finish(self): |
| 331 | values = self._elem_appender.finish() |
| 332 | offsets = pa.array(self._offsets, type=pa.int32()) |
| 333 | null_mask = pa.array([not v for v in self._null_bitmap], type=pa.bool_()) |
| 334 | return pa.ListArray.from_arrays(offsets, values, mask=null_mask) |
| 335 | |
| 336 | def reset(self): |
| 337 | self._offsets = [0] |