code: def _request_toc_element(self, index):
          
          logger.debug('Requesting index %d on port %d', index, self.port)
          pk = CRTPPacket()
          if self._useV2:
              pk.set_header(self.port, TOC_CHANNEL)
              pk.data = (CMD_TOC_ITEM_V2, index & 0x0ff, (index >> 8) & 0x0ff)
              self.cf.send_packet(pk, expected_reply=(
                  CMD_TOC_ITEM_V2, index & 0x0ff, (index >> 8) & 0x0ff))
          else:
              pk.set_header(self.port, TOC_CHANNEL)
              pk.data = (CMD_TOC_ELEMENT, index)
              self.cf.send_packet(pk, expected_reply=(CMD_TOC_ELEMENT, index))
docs: Request information about a specific item in the TOC