Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
Target 1 "F.A." monster you control; reduce its Level by 2, and if you do, draw cards equal to the number of "F.A. Pit Stop" in your GY +1. During your Main Phase, except the turn this card was sent to the GY: You can banish this card from your GY, then target 1 "F.A." monster in your GY; Special Summon it. You can only use each effect of "F.A. Pit Stop" once per turn.
--Ｆ．Ａ．ピットストップ
--F.A. Pit Stop
local s,id=GetID()
function s.initial_effect(c)
	--Reduce the level of 1 "F.A." monster by 2, and if you do, draw cards equal to the number of "F.A. Pit Stop" in your GY +1.
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetCategory(CATEGORY_LVCHANGE+CATEGORY_DRAW)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetProperty(EFFECT_FLAG_PLAYER_TARGET+EFFECT_FLAG_CARD_TARGET)
	e1:SetCode(EVENT_FREE_CHAIN)
	e1:SetCountLimit(1,id)
	e1:SetTarget(s.target)
	e1:SetOperation(s.activate)
	c:RegisterEffect(e1)
	--Special Summon 1 "F.A." monster from your GY
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,1))
	e2:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e2:SetType(EFFECT_TYPE_IGNITION)
	e2:SetRange(LOCATION_GRAVE)
	e2:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e2:SetCountLimit(1,{id,1})
	e2:SetCondition(aux.exccon)
	e2:SetCost(Cost.SelfBanish)
	e2:SetTarget(s.sptg)
	e2:SetOperation(s.spop)
	c:RegisterEffect(e2)
end
s.listed_series={SET_FA}
function s.filter(c)
	return c:IsFaceup() and c:IsSetCard(SET_FA) and c:IsLevelAbove(3)
end
function s.target(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsLocation(LOCATION_MZONE) and chkc:IsControler(tp) and s.filter(chkc) end
	if chk==0 then return Duel.IsPlayerCanDraw(tp,1)
		and Duel.IsExistingTarget(s.filter,tp,LOCATION_MZONE,0,1,nil) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_TARGET)
	Duel.SelectTarget(tp,s.filter,tp,LOCATION_MZONE,0,1,1,nil)
	Duel.SetTargetPlayer(tp)
	local ct=Duel.GetMatchingGroupCount(Card.IsCode,tp,LOCATION_GRAVE,0,nil,id)
	Duel.SetOperationInfo(0,CATEGORY_DRAW,nil,0,tp,ct+1)
end
function s.activate(e,tp,eg,ep,ev,re,r,rp)
	local tc=Duel.GetFirstTarget()
	local p=Duel.GetChainInfo(0,CHAININFO_TARGET_PLAYER)
	local d=Duel.GetMatchingGroupCount(Card.IsCode,p,LOCATION_GRAVE,0,nil,id)+1
	if tc:IsRelateToEffect(e) and tc:IsFaceup() and tc:IsLevelAbove(3) and not tc:IsImmuneToEffect(e) then 
		local e1=Effect.CreateEffect(e:GetHandler())
		e1:SetType(EFFECT_TYPE_SINGLE)
		e1:SetCode(EFFECT_UPDATE_LEVEL)
		e1:SetValue(-2)
		e1:SetReset(RESET_EVENT|RESETS_STANDARD)
		tc:RegisterEffect(e1)
		Duel.Draw(p,d,REASON_EFFECT)
	end
end
function s.spfilter(c,e,tp)
	return c:IsSetCard(SET_FA) and c:IsCanBeSpecialSummoned(e,0,tp,false,false)
end
function s.sptg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsControler(tp) and chkc:IsLocation(LOCATION_GRAVE) and s.spfilter(chkc,e,tp) end
	if chk==0 then return Duel.GetLocationCount(tp,LOCATION_MZONE)>0
		and Duel.IsExistingTarget(s.spfilter,tp,LOCATION_GRAVE,0,1,nil,e,tp) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
	local g=Duel.SelectTarget(tp,s.spfilter,tp,LOCATION_GRAVE,0,1,1,nil,e,tp)
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,g,1,tp,0)
end
function s.spop(e,tp,eg,ep,ev,re,r,rp)
	local tc=Duel.GetFirstTarget()
	if tc:IsRelateToEffect(e) then
		Duel.SpecialSummon(tc,0,tp,tp,false,false,POS_FACEUP)
	end
end