HelpAA With my hack refuses to work. HELP

" CODE THAT WONT WORK ;/
hook.Add("Think", "Ana", function()
if GetConVarNumber("ana") != 1 then
if (!LocalPlayer():KeyDown(IN_ATTACK)) then
LocalPlayer:SetViewAngles(Angle(181, getangs.y, 180))
end
end
end)
" CODE THAT WONT WORK ;/

What I dont understand why wont it work for my hack i get this in the console

"ERROR

[ERROR] lua/noname.lua:913: attempt to index global 'LocalPlayer' (a function value)
1. v - lua/noname.lua:913
2. unknown - lua/includes/modules/hook.lua:84

"ERROR

Help me fix this please

just copy paste from hera wtf?

a thinkning aa dude wow