Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
Declare 1 Monster Card name. If the declared card is in your opponent's Deck, add 1 of that card to your opponent's hand.
--闇の指名者
--Dark Designator
local s,id=GetID()
function s.initial_effect(c)
	--Activate
	local e1=Effect.CreateEffect(c)
	e1:SetCategory(CATEGORY_SEARCH)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetCode(EVENT_FREE_CHAIN)
	e1:SetTarget(s.target)
	e1:SetOperation(s.activate)
	c:RegisterEffect(e1)
end
function s.target(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(Card.IsAbleToHand,tp,0,LOCATION_DECK,1,nil) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_CODE)
	s.announce_filter={TYPE_MONSTER,OPCODE_ISTYPE,TYPE_EXTRA,OPCODE_ISTYPE,OPCODE_NOT,OPCODE_AND}
	local code=Duel.AnnounceCard(tp,table.unpack(s.announce_filter))
	Duel.SetTargetParam(code)
	Duel.SetOperationInfo(0,CATEGORY_ANNOUNCE,nil,0,tp,ANNOUNCE_CARD_FILTER)
end
function s.filter(c,code)
	return c:IsMonster() and c:IsCode(code) and c:IsAbleToHand()
end
function s.activate(e,tp,eg,ep,ev,re,r,rp)
	local code=Duel.GetChainInfo(0,CHAININFO_TARGET_PARAM)
	Duel.Hint(HINT_SELECTMSG,1-tp,HINTMSG_ATOHAND)
	local g=Duel.SelectMatchingCard(1-tp,s.filter,1-tp,LOCATION_DECK,0,1,1,nil,code)
	local tc=g:GetFirst()
	if tc then
		Duel.SendtoHand(tc,nil,REASON_EFFECT)
		Duel.ConfirmCards(tp,tc)
	end
end