Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
You can Tribute Summon this card in face-up Attack Position by Tributing 1 "Steelswarm" monster. When this card is Tribute Summoned by Tributing a "Steelswarm" monster(s): You can target 1 card your opponent controls; send that target to the Graveyard and gain 1000 Life Points.
--インヴェルズ・ギラファ
--Steelswarm Girastag
local s,id=GetID()
function s.initial_effect(c)
	--summon with 1 tribute
	local e1=aux.AddNormalSummonProcedure(c,true,true,1,1,SUMMON_TYPE_TRIBUTE,aux.Stringid(id,0),s.otfilter)
	--summon success
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,1))
	e2:SetCategory(CATEGORY_TOGRAVE+CATEGORY_RECOVER)
	e2:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e2:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_O)
	e2:SetCode(EVENT_SUMMON_SUCCESS)
	e2:SetCondition(s.condition)
	e2:SetTarget(s.target)
	e2:SetOperation(s.operation)
	c:RegisterEffect(e2)
	--tribute check
	local e3=Effect.CreateEffect(c)
	e3:SetType(EFFECT_TYPE_SINGLE)
	e3:SetCode(EFFECT_MATERIAL_CHECK)
	e3:SetValue(s.valcheck)
	e3:SetLabelObject(e2)
	c:RegisterEffect(e3)
end
s.listed_series={SET_STEELSWARM}
function s.otfilter(c,tp)
	return c:IsSetCard(SET_STEELSWARM) and (c:IsControler(tp) or c:IsFaceup())
end
function s.valcheck(e,c)
	local g=c:GetMaterial()
	if g:IsExists(Card.IsSetCard,1,nil,SET_STEELSWARM) then
		e:GetLabelObject():SetLabel(1)
	else
		e:GetLabelObject():SetLabel(0)
	end
end
function s.condition(e,tp,eg,ep,ev,re,r,rp)
	return e:GetHandler():IsTributeSummoned() and e:GetLabel()==1
end
function s.target(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsOnField() and chkc:IsControler(1-tp) end
	if chk==0 then return Duel.IsExistingTarget(nil,tp,0,LOCATION_ONFIELD,1,nil) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_TOGRAVE)
	local g=Duel.SelectTarget(tp,nil,tp,0,LOCATION_ONFIELD,1,1,nil)
	Duel.SetOperationInfo(0,CATEGORY_TOGRAVE,g,1,0,0)
	Duel.SetOperationInfo(0,CATEGORY_RECOVER,nil,0,tp,1000)
end
function s.operation(e,tp,eg,ep,ev,re,r,rp)
	local tc=Duel.GetFirstTarget()
	if tc:IsRelateToEffect(e) then
		Duel.SendtoGrave(tc,REASON_EFFECT)
		if tc:IsLocation(LOCATION_GRAVE) then Duel.Recover(tp,1000,REASON_EFFECT) end
	end
end