Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
When a "Blackwing" monster is Normal Summoned to your field: You can add 1 "Blackwing" monster from your Deck to your hand with less ATK than that monster.
--黒い旋風
--Black Whirlwind
local s,id=GetID()
function s.initial_effect(c)
	--Activate
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetCode(EVENT_FREE_CHAIN)
	c:RegisterEffect(e1)
	--Search
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,0))
	e2:SetCategory(CATEGORY_TOHAND+CATEGORY_SEARCH)
	e2:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_TRIGGER_O)
	e2:SetRange(LOCATION_SZONE)
	e2:SetCode(EVENT_SUMMON_SUCCESS)
	e2:SetTarget(s.target)
	e2:SetOperation(s.operation)
	c:RegisterEffect(e2)
end
s.listed_series={SET_BLACKWING}
function s.filter(c,val)
	local atk=c:GetAttack()
	return c:IsAttackAbove(0) and atk<val and c:IsSetCard(SET_BLACKWING) and c:IsMonster() and c:IsAbleToHand()
end
function s.target(e,tp,eg,ep,ev,re,r,rp,chk)
	local tc=eg:GetFirst()
	if chk==0 then return tc:IsSetCard(SET_BLACKWING) and tc:IsControler(tp)
		and Duel.IsExistingMatchingCard(s.filter,tp,LOCATION_DECK,0,1,nil,tc:GetAttack()) end
	tc:CreateEffectRelation(e)
	Duel.SetOperationInfo(0,CATEGORY_TOHAND,nil,1,tp,LOCATION_DECK)
end
function s.operation(e,tp,eg,ep,ev,re,r,rp)
	local tc=eg:GetFirst()
	if not e:GetHandler():IsRelateToEffect(e) or not tc:IsRelateToEffect(e) or tc:IsFacedown() then return end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_ATOHAND)
	local g=Duel.SelectMatchingCard(tp,s.filter,tp,LOCATION_DECK,0,1,1,nil,tc:GetAttack())
	if #g>0 then
		Duel.SendtoHand(g,nil,REASON_EFFECT)
		Duel.ConfirmCards(1-tp,g)
	end
end