def METHOD_NAME(self):
    # Write the <sst> element.
    xmlns = "http://schemas.openxmlformats.org/spreadsheetml/2006/main"
    attributes = [
        ("xmlns", xmlns),
        ("count", self.string_table.count),
        ("uniqueCount", self.string_table.unique_count),
    ]
    self._xml_start_tag("sst", attributes)