code: def _rewrite_ser_data(self, ser, series_data, date_1904):
          
          ser._remove_tx()
          ser._remove_xVal()
          ser._remove_yVal()
  
          xml_writer = _XySeriesXmlWriter(series_data)
  
          ser._insert_tx(xml_writer.tx)
          ser._insert_xVal(xml_writer.xVal)
          ser._insert_yVal(xml_writer.yVal)
docs: Rewrite the ``<c:tx>``, ``<c:xVal>`` and ``<c:yVal>`` child elements
          of *ser* based on the values in *series_data*.