Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
If this card is sent to the GY: You can add 1 "Ghost Fusion" from your Deck to your hand. If this card is in your GY, except the turn it was sent there: You can banish this card and discard 1 card, then target 1 of your banished Level 4 or higher Zombie monsters; add it to your hand. You can only use each effect of "Ghost Sleeper, the Underworld Princess" once per turn.
--劫火の眠り姫ゴースト・スリーパー
--Ghost Sleeper, the Underworld Princess
local s,id=GetID()
function s.initial_effect(c)
	--Search 1 "Ghost Fusion"
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetCategory(CATEGORY_TOHAND+CATEGORY_SEARCH)
	e1:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_O)
	e1:SetProperty(EFFECT_FLAG_DELAY)
	e1:SetCode(EVENT_TO_GRAVE)
	e1:SetCountLimit(1,{id,1})
	e1:SetTarget(s.thtg)
	e1:SetOperation(s.thop)
	c:RegisterEffect(e1)
	--Add 1 of your banished Level 4 Zombies to your hand
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,1))
	e2:SetCategory(CATEGORY_TOHAND)
	e2:SetType(EFFECT_TYPE_IGNITION)
	e2:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e2:SetRange(LOCATION_GRAVE)
	e2:SetCountLimit(1,{id,2})
	e2:SetCondition(aux.exccon)
	e2:SetCost(s.thcost)
	e2:SetTarget(s.thtg2)
	e2:SetOperation(s.thop2)
	c:RegisterEffect(e2)
end
s.listed_names={35705817}
function s.thfilter(c)
	return c:IsCode(35705817) and c:IsAbleToHand()
end
function s.thtg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(s.thfilter,tp,LOCATION_DECK,0,1,nil) end
	Duel.SetOperationInfo(0,CATEGORY_TOHAND,nil,1,tp,LOCATION_DECK)
end
function s.thop(e,tp,eg,ep,ev,re,r,rp)
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_ATOHAND)
	local g=Duel.SelectMatchingCard(tp,s.thfilter,tp,LOCATION_DECK,0,1,1,nil)
	if #g>0 then
		Duel.SendtoHand(g,nil,REASON_EFFECT)
		Duel.ConfirmCards(1-tp,g)
	end
end
function s.thcost(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return aux.bfgcost(e,tp,eg,ep,ev,re,r,rp,chk)
		and Duel.IsExistingMatchingCard(Card.IsDiscardable,tp,LOCATION_HAND,0,1,nil) end
	aux.bfgcost(e,tp,eg,ep,ev,re,r,rp,chk)
	Duel.DiscardHand(tp,Card.IsDiscardable,1,1,REASON_COST|REASON_DISCARD)
end
function s.thfilter2(c)
	return c:IsFaceup() and c:IsRace(RACE_ZOMBIE) and c:IsLevelAbove(4) and c:IsMonster() and c:IsAbleToHand()
end
function s.thtg2(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsControler(tp) and chkc:IsLocation(LOCATION_REMOVED) and s.thfilter2(chkc) end
	if chk==0 then return Duel.IsExistingTarget(s.thfilter2,tp,LOCATION_REMOVED,0,1,nil) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_ATOHAND)
	local g=Duel.SelectTarget(tp,s.thfilter2,tp,LOCATION_REMOVED,0,1,1,nil)
	Duel.SetOperationInfo(0,CATEGORY_TOHAND,g,1,0,0)
end
function s.thop2(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