How can I detect if my GHUB profile is in G-Shift mode within a LUA script?

Question

I have a LUA script on my profile, but I only want it to execute when the profile is G-shifted. Is there some GHUB Lua api for detecting that? I don't see anything in the G_series_Lua_API.pdf

i.e. if (g-shifted) doSomething end

I tried searching around but could not find any information about this.