Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
You can Tribute 1 Level 4 or lower Cyberse monster; Special Summon any number of Cyberse Normal Monsters from your Deck and/or GY whose total Levels equal the Tributed monster's Level on the field, but banish them during the End Phase. You can only use this effect of "Prompthorn" once per turn.
--プロンプトホーン
--Prompthorn
--
local s,id=GetID()
function s.initial_effect(c)
	--special summon
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e1:SetType(EFFECT_TYPE_IGNITION)
	e1:SetRange(LOCATION_MZONE)
	e1:SetCountLimit(1,id)
	e1:SetCost(s.spcost)
	e1:SetTarget(s.sptg)
	e1:SetOperation(s.spop)
	c:RegisterEffect(e1)
end
function s.costfilter(c,e,tp,g,ft)
	local lv=c:GetLevel()
	return c:IsLevelBelow(4) and c:IsRace(RACE_CYBERSE) and Duel.GetMZoneCount(tp,c)>0 and (c:IsControler(tp) or c:IsFaceup())
		and g:CheckWithSumEqual(Card.GetLevel,lv,1,ft+1)
end
function s.spfilter(c,e,tp)
	return c:IsRace(RACE_CYBERSE) and c:IsType(TYPE_NORMAL) and c:IsCanBeSpecialSummoned(e,0,tp,false,false)
end
function s.spcost(e,tp,eg,ep,ev,re,r,rp,chk)
	local g=Duel.GetMatchingGroup(s.spfilter,tp,LOCATION_DECK|LOCATION_GRAVE,0,nil,e,tp)
	local ft=Duel.GetLocationCount(tp,LOCATION_MZONE)
	if ft>1 and Duel.IsPlayerAffectedByEffect(tp,CARD_BLUEEYES_SPIRIT) then ft=1 end
	if chk==0 then return ft>-1 and Duel.CheckReleaseGroupCost(tp,s.costfilter,1,false,nil,nil,e,tp,g,ft) end
	local sg=Duel.SelectReleaseGroupCost(tp,s.costfilter,1,1,false,nil,nil,e,tp,g,ft)
	e:SetLabel(sg:GetFirst():GetLevel())
	Duel.Release(sg,REASON_COST)
end
function s.sptg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return true end
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,nil,1,tp,LOCATION_DECK)
end
function s.spop(e,tp,eg,ep,ev,re,r,rp)
	local ft=Duel.GetLocationCount(tp,LOCATION_MZONE)
	if ft>1 and Duel.IsPlayerAffectedByEffect(tp,CARD_BLUEEYES_SPIRIT) then ft=1 end
	local g=Duel.GetMatchingGroup(aux.NecroValleyFilter(s.spfilter),tp,LOCATION_DECK|LOCATION_GRAVE,0,nil,e,tp)
	if ft<=0 or #g==0 then return end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
	local sg=g:SelectWithSumEqual(tp,Card.GetLevel,e:GetLabel(),1,ft)
	if #sg>0 then
		local fid=e:GetHandler():GetFieldID()
		local tc=sg:GetFirst()
		for tc in aux.Next(sg) do
			Duel.SpecialSummonStep(tc,0,tp,tp,false,false,POS_FACEUP)
			tc:RegisterFlagEffect(id,RESET_EVENT|RESETS_STANDARD,0,1,fid)
		end
		Duel.SpecialSummonComplete()
		sg:KeepAlive()
		local e1=Effect.CreateEffect(e:GetHandler())
		e1:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_CONTINUOUS)
		e1:SetCode(EVENT_PHASE+PHASE_END)
		e1:SetProperty(EFFECT_FLAG_IGNORE_IMMUNE)
		e1:SetCountLimit(1)
		e1:SetLabel(fid)
		e1:SetLabelObject(sg)
		e1:SetCondition(s.rmcon)
		e1:SetOperation(s.rmop)
		Duel.RegisterEffect(e1,tp)
	end
end
function s.rmfilter(c,fid)
	return c:GetFlagEffectLabel(id)==fid
end
function s.rmcon(e,tp,eg,ep,ev,re,r,rp)
	local g=e:GetLabelObject()
	if not g:IsExists(s.rmfilter,1,nil,e:GetLabel()) then
		g:DeleteGroup()
		e:Reset()
		return false
	else return true end
end
function s.rmop(e,tp,eg,ep,ev,re,r,rp)
	local g=e:GetLabelObject()
	local tg=g:Filter(s.rmfilter,nil,e:GetLabel())
	Duel.Remove(tg,POS_FACEUP,REASON_EFFECT)
end