Insert *subelement* at position *index*.
(self, index, subelement)
| 241 | self._children.append(element) |
| 242 | |
| 243 | def insert(self, index, subelement): |
| 244 | """Insert *subelement* at position *index*.""" |
| 245 | self._assert_is_element(subelement) |
| 246 | self._children.insert(index, subelement) |
| 247 | |
| 248 | def _assert_is_element(self, e): |
| 249 | # Need to refer to the actual Python implementation, not the |