val spades : ?single_cell:bool ‑> ?iontorrent:bool ‑> ?pe:([ `sanger ] Defs.fastq Bistro.Std.workflow list * [ `sanger ] Defs.fastq Bistro.Std.workflow list) ‑> ?threads:int ‑> ?memory:int ‑> unit ‑> [ `spades ] Bistro.Std.directory Bistro.Std.workflowval contigs : ([ `spades ], Defs.fasta) Bistro.Std.selectorval scaffolds : ([ `spades ], Defs.fasta) Bistro.Std.selector