How to mirror SNAT when using an iRUle with "snat automap"

but I can't figure out how to enable connection mirroring on a SNAT when it is called out in an iRule.

i understand you just need to enable connection mirroring for virtual server (since snat is applied to traffic for virtual server).

connection mirroring for snat in sol13478 could be applied to snat list configuration.

sol13478: Overview of connection and persistence mirroring (11.x)