Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
If this card destroys an opponent's monster by battle: Draw 1 card, then return 1 card from your hand to the bottom of the Deck.
--白兵戦型お手伝いロボ
--Helping Robo for Combat
local s,id=GetID()
function s.initial_effect(c)
	--Draw 1 card and return 1 card to the Deck
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetCategory(CATEGORY_DRAW+CATEGORY_TODECK)
	e1:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_F)
	e1:SetCode(EVENT_BATTLE_DESTROYING)
	e1:SetTarget(s.drtg)
	e1:SetOperation(s.drop)
	c:RegisterEffect(e1)
end
function s.drtg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return true end
	Duel.SetOperationInfo(0,CATEGORY_DRAW,nil,0,tp,1)
end
function s.drop(e,tp,eg,ep,ev,re,r,rp)
	if Duel.Draw(tp,1,REASON_EFFECT)>0 then
		Duel.ShuffleHand(tp)
		Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_TODECK)
		local g=Duel.SelectMatchingCard(tp,nil,tp,LOCATION_HAND,0,1,1,nil)
		if #g>0 then
			Duel.BreakEffect()
			Duel.SendtoDeck(g,nil,SEQ_DECKBOTTOM,REASON_EFFECT)
		end
	end
end