Get active Portal in ArcGIS Arcade when executing in Dashboard

[PhilipPenn1]

Currently in a data expression in an Enterprise Portal 11.0 dashboard if I want to get a Portal I have to hardcode the Portal URL

var portal = Portal("https://myportal/portal");

This causes headaches when migrating the script from one environment to another. Given that this is executing...from within Portal itself, can I not just get the currently active/signed-in Portal i.e.

var portal = Portal();

thanks,

Phil