val ucsc_reference_genome : release:int ‑> species:species ‑> Ucsc_gb.genome
val gff : ?chr_name:[ `ensembl | `ucsc ] ‑> release:int ‑> species:species ‑> Defs.gff Bistro.Std.workflow
val gtf : ?chr_name:[ `ensembl | `ucsc ] ‑> release:int ‑> species:species ‑> Defs.gff Bistro.Std.workflow