A lane slot record will have the following fields:
lane tag content source V123411 ATCACG DNA V4512415 V123411 CGATGT DNA V1415512 V412511 DNA V1909012 V661251 TGACCA DNA V1123111 V661251 CTTGTA DNA V1211141 ....
the content column can be option if passed as script's input value, tag column is optional too.