Mark spliced/unspliced reads on original BAM file

[taffy-miao]

Hi Team,
Thanks for the package.
I wonder can velocyto mark spliced/unspliced reads on the original BAM file or the sorted file? If not, I want to use pysam to add customed tag to identify spliced/unspliced/ambiguous reads in the counting process, which file and where should I edit?
Thanks for your help