Retrieving haplotype/allele walks for a snarl

[soum-stacks]

Description

I would like to query a pangenome graph for haplotype/allele walks that traverse a specific snarl.

Input:

• snarl entry node id and exit node id, ideally in a file which may contain node ids for one or multiple snarls

Output:

• all haplotype/allele walks (with sample IDs) that traverse the snarl

Questions

1. Does vg already support this query in some form?If yes, what is the recommended command or workflow?
2. If not exposed via CLI, is there an internal API or library function that provides this?