Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
If this card is sent from the field to the GY: You can Set 1 "Fire Formation" Spell directly from your Deck. "Fire Formation" Spells/Traps you control cannot be destroyed by your opponent's card effects.
--捷炎星－セイヴン
--Brotherhood of the Fire Fist - Raven
local s,id=GetID()
function s.initial_effect(c)
	--set
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_O)
	e1:SetProperty(EFFECT_FLAG_DELAY+EFFECT_FLAG_DAMAGE_STEP)
	e1:SetCode(EVENT_TO_GRAVE)
	e1:SetCondition(s.setcon)
	e1:SetTarget(s.settg)
	e1:SetOperation(s.setop)
	c:RegisterEffect(e1)
	--protection
	local e2=Effect.CreateEffect(c)
	e2:SetType(EFFECT_TYPE_FIELD)
	e2:SetCode(EFFECT_INDESTRUCTABLE_EFFECT)
	e2:SetRange(LOCATION_MZONE)
	e2:SetTargetRange(LOCATION_ONFIELD,0)
	e2:SetTarget(s.indtg)
	e2:SetValue(s.indval)
	c:RegisterEffect(e2)
end
s.listed_series={SET_FIRE_FORMATION}
function s.setcon(e,tp,eg,ep,ev,re,r,rp)
	return e:GetHandler():IsPreviousLocation(LOCATION_ONFIELD)
end
function s.filter(c)
	return c:IsSetCard(SET_FIRE_FORMATION) and c:IsSpell() and c:IsSSetable()
end
function s.settg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(s.filter,tp,LOCATION_DECK,0,1,nil) end
end
function s.setop(e,tp,eg,ep,ev,re,r,rp)
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SET)
	local g=Duel.SelectMatchingCard(tp,s.filter,tp,LOCATION_DECK,0,1,1,nil)
	if #g>0 then
		Duel.SSet(tp,g:GetFirst())
	end
end
function s.indtg(e,c)
	return c:IsFaceup() and c:IsSetCard(SET_FIRE_FORMATION) and c:IsSpellTrap()
end
function s.indval(e,re,tp)
	return e:GetHandler():GetControler()~=tp
end