code: def _insert_missing_rows(self, indexes):
          
          new_indexes = [x for x in indexes if x not in self._index]
          for x in new_indexes:
              self._insert_row(bisect_left(self._index, x), x)
docs: Given a list of indexes, find all the indexes that are not currently in the Series and make a new row for
          that index, inserting into the index. This requires the Series to be sorted=True
  
          :param indexes: list of indexes
          :return: nothing