Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
When this card is activated: You can Fusion Summon 1 Beast-Warrior Fusion Monster from your Extra Deck, using monsters from your hand or field as Fusion Material. If this face-up card is sent from the Spell & Trap Zone to the GY: You can target 1 "Fire Fist" monster in your GY; add it to your hand. You can only use this effect of "Fire Formation - Ingen" once per turn. You can only activate 1 "Fire Formation - Ingen" per turn.
--炎舞－「隠元」
--Fire Formation - Ingen
--Scripted by Eerie Code
local s,id=GetID()
function s.initial_effect(c)
	--When activated, fusion summon 1 beast-warrior fusion monster
	local e1=Fusion.CreateSummonEff(c,aux.FilterBoolFunction(Card.IsRace,RACE_BEASTWARRIOR))
	e1:SetCountLimit(1,id,EFFECT_COUNT_CODE_OATH)
	e1:SetTarget(s.target(e1:GetTarget(),e1:GetOperation()))
	c:RegisterEffect(e1)
	--If this face-up card is sent to GY, add 1 "Fire Fist" monster from GY
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,1))
	e2:SetCategory(CATEGORY_TOHAND)
	e2:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_O)
	e2:SetProperty(EFFECT_FLAG_DELAY+EFFECT_FLAG_CARD_TARGET)
	e2:SetCode(EVENT_TO_GRAVE)
	e2:SetCountLimit(1,{id,1})
	e2:SetCondition(s.thcon)
	e2:SetTarget(s.thtg)
	e2:SetOperation(s.thop)
	c:RegisterEffect(e2)
end
s.listed_series={SET_FIRE_FIST}
function s.target(sptg,spop)
	return function (e,tp,eg,ep,ev,re,r,rp,chk)
			if chk==0 then return true end
			if sptg(e,tp,eg,ep,ev,re,r,rp,0) and Duel.SelectYesNo(tp,aux.Stringid(id,0)) then
				e:SetCategory(CATEGORY_SPECIAL_SUMMON)
				e:SetOperation(spop)
				sptg(e,tp,eg,ep,ev,re,r,rp,1)
			else
				e:SetOperation(aux.NULL)
				e:SetCategory(0)
			end
	end
end
function s.thcon(e,tp,eg,ep,ev,re,r,rp)
	return e:GetHandler():IsPreviousPosition(POS_FACEUP)
		and e:GetHandler():IsPreviousLocation(LOCATION_SZONE)
end
function s.thfilter(c)
	return c:IsMonster() and c:IsSetCard(SET_FIRE_FIST) and c:IsAbleToHand()
end
function s.thtg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsLocation(LOCATION_GRAVE) and chkc:IsControler(tp) and s.thfilter(chkc) end
	if chk==0 then return Duel.IsExistingTarget(s.thfilter,tp,LOCATION_GRAVE,0,1,nil) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_ATOHAND)
	local g=Duel.SelectTarget(tp,s.thfilter,tp,LOCATION_GRAVE,0,1,1,nil)
	Duel.SetOperationInfo(0,CATEGORY_TOHAND,g,1,0,0)
end
function s.thop(e,tp,eg,ep,ev,re,r,rp)
	local tc=Duel.GetFirstTarget()
	if tc:IsRelateToEffect(e) then
		Duel.SendtoHand(tc,nil,REASON_EFFECT)
	end
end