ReadonlyqnameReadonlyflagReadonlyrnameReadonlyposReadonlymapqReadonlycigarReadonlyrnextReadonlypnextReadonlytlenReadonlyseqReadonlyqualOptional ReadonlytagsOptional ReadonlylineReadonlyformatOptional ReadonlyblockBGZF block offset for random access
Optional ReadonlyblockBGZF block end offset
Optional ReadonlybinBAI bin for indexing
BAM alignment record extending SAM with binary-specific metadata