Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
If this card is Special Summoned by the effect of a "Predaplant" monster: You can add 1 "Polymerization" Spell Card or "Fusion" Spell Card from your Deck to your hand. You can only use this effect of "Predaplant Darlingtonia Cobra" once per Duel.
--捕食植物ダーリング・コブラ
--Predaplant Darlingtonia Cobra
local s,id=GetID()
function s.initial_effect(c)
	--search
	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:SetCode(EVENT_SPSUMMON_SUCCESS)
	e1:SetProperty(EFFECT_FLAG_DELAY)
	e1:SetCountLimit(1,id,EFFECT_COUNT_CODE_DUEL)
	e1:SetCondition(s.thcon)
	e1:SetTarget(s.thtg)
	e1:SetOperation(s.thop)
	c:RegisterEffect(e1)
end
s.listed_series={SET_PREDAPLANT,SET_FUSION}
function s.thcon(e,tp,eg,ep,ev,re,r,rp)
	return re and re:IsMonsterEffect() and re:GetHandler():IsSetCard(SET_PREDAPLANT)
end
function s.thfilter(c)
	return c:IsSetCard(SET_FUSION) and c:IsSpell() 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