gene2transcripts_v2: cds

[sophiaj16]

Is your feature request related to a problem? Please describe.
I'm working on a project where i'm utilising the gene2transcripts_v2 API to generate a BED file of GRCh38 MANE transcript exon coordinates for a list of genes.

I'm able to use the genomic_start and genomic_end coordinates within the exon structure results to achieve this, however, it would be good to have the ability to exclude UTR's and non-coding exons.

Describe the solution you'd like
Having coding sequence (cds) genomic start/end positions for each exon (where applicable) in the output, in addition to the existing genomic_start and genomic_end. (Equivalent to the CDS and exon values in refseq GTF file).

Describe alternatives you've considered
I'm able to retrieve this cds information from the NCBI refseq GTF file using a custom script but it would be nice to have in VariantValidator.

Additional context