C_Garrison.
functionimplementedavailable in: camelot
Returns whether the player is on a garrison map. · description by wowlua
The client has this function, but Blizzard's documentation leaves it out, so its parameters and results aren't known.
In wowlua's emulated client
implementedwowlua models the system behind it. what the statuses mean
sources
Description: written by wowlua where no documentation describes the entry.