let hisat       ?(configuration = Tools.Hisat.Configuration.default_v1) =     make_aligner "hisat"       ~configuration       ~config_name:Tools.Hisat.Configuration.name       ~config_to_json:Tools.Hisat.Configuration.to_json       ~make_workflow:(         fun ~reference_build ~configuration ~result_prefix ~run_with fastq ->           Tools.Hisat.align ~configuration ~reference_build             ~fastq ~result_prefix ~run_with ()           |> Tools.Samtools.sam_to_bam ~reference_build ~run_with       )