ply:IsUserGroup for VIP jobs DarkRP question

Okay well we all know this:
customCheck = function(ply)
return ply:IsUserGroup(“donator”) or ply:IsUserGroup(“supporter”) or ply:IsSuperAdmin()
end
})
makes a job only available for the ULX group “Donator”, “Supporter”, and it is available for SuperAdmin.
But is it possible to make something only available for a SteamID
Like…
customCheck = function(ply)
return ply:IsSteamID(“STEAM:blablablablabla”)
end
})
If it’s possible, how would I go about doing this?

ply:SteamID() == “STEAM:BLAH”

That’s sick, thanks!