let mutect2 =     somatic_vc "mutect2"       Tools.Gatk.Configuration.Mutect2.name       Tools.Gatk.Configuration.Mutect2.to_json       Tools.Gatk.Configuration.Mutect2.default       (fun         ~configuration ~run_with         ~normal ~tumor ~result_prefix ->         Tools.Gatk.mutect2 ~configuration ~run_with           ~input_normal_bam:normal           ~input_tumor_bam:tumor           ~result_prefix `Map_reduce)