https://github.com/broadinstitute/warp/blob/4dc972976cb0640e58321cd4746579a3fc0dee62/pipelines/broad/dna_seq/germline/single_sample/exome/ExomeGermlineSingleSample.wdl

wdl2cwl.main.ConversionException: ../../structs/dna_seq/DNASeqStructs.wdl:36:3: Input of type ReferenceFasta is not yet handled.

See https://github.com/broadinstitute/warp/blob/4dc972976cb0640e58321cd4746579a3fc0dee62/structs/dna_seq/DNASeqStructs.wdl#L36