Using the API how can I list the contents of a MAC alias?

[sja1440]

I already successfully use the API for manipulating FreeRADIUS users and reading DHCPv4 leases.

Using the OPNSense API Reference, I have been unable to discover how to list the contents of any specific Firewall Alias. I have tried many commands for both the alias and alias-util controllers.

Can this be done?

If so, could somebody provide a one line hint using curl?

[sja1440]

So it looks as if it cannot be done.