Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
When a Machine-Type monster you control is destroyed by battle and sent to the Graveyard while this card is face-up on the field, you can add 1 Machine-Type monster with 1000 or less ATK from your Deck to your hand.
--バイオファルコン
--Biofalcon
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_FIELD+EFFECT_TYPE_TRIGGER_O)
	e1:SetRange(LOCATION_MZONE)
	e1:SetProperty(EFFECT_FLAG_DELAY)
	e1:SetCode(EVENT_BATTLE_DESTROYED)
	e1:SetCondition(s.thcon)
	e1:SetTarget(s.thtg)
	e1:SetOperation(s.thop)
	c:RegisterEffect(e1)
end
function s.cfilter(c,tp)
	return c:IsPreviousControler(tp) and c:IsLocation(LOCATION_GRAVE) and c:IsRace(RACE_MACHINE) and c:IsReason(REASON_BATTLE)
end
function s.thcon(e,tp,eg,ep,ev,re,r,rp)
	return eg:IsExists(s.cfilter,1,nil,tp)
end
function s.filter(c)
	return c:IsAttackBelow(1000) and c:IsRace(RACE_MACHINE) and c:IsAbleToHand()
end
function s.thtg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return e:GetHandler():IsRelateToEffect(e) and e:GetHandler():IsFaceup()
		and Duel.IsExistingMatchingCard(s.filter,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.filter,tp,LOCATION_DECK,0,1,1,nil)
	if #g>0 then
		Duel.SendtoHand(g,nil,REASON_EFFECT)
		Duel.ConfirmCards(1-tp,g)
	end
end