## remove_at(index) {#int} Removes the node at the specified index from the collection and from the document. ```python def remove_at(self, index: int): ... ``` | Parameter | Type | Description | |......example -1 means the last node, -2 means the second before last and...write('Section 2') self.assertEqual('Section 1\x0cSection 2', doc.get_text()...