Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
If this card is Normal or Special Summoned while you control a "Sunavalon" Link Monster: You can target 1 Level 4 or lower Plant Normal Monster in your GY; Special Summon it. You can banish this card in your GY and 1 Link Monster you control; if you have 2 or more Plant Link Monsters with the same name as each other in your GY, Special Summon 1 of them. You can only use each effect of "Sunseed Twin" once per turn.
--聖種の天双芽
--Sunseed Twin
--Scripted by Eerie Code, anime script by Playmaker 772211 and Larry126
local s,id=GetID()
function s.initial_effect(c)
	--Special Summon 1 Level 4 or lower Plant Normal Monster from your GY 
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e1:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_O)
	e1:SetProperty(EFFECT_FLAG_DELAY+EFFECT_FLAG_CARD_TARGET)
	e1:SetCode(EVENT_SUMMON_SUCCESS)
	e1:SetCountLimit(1,id)
	e1:SetCondition(s.normalspcon)
	e1:SetTarget(s.normalsptg)
	e1:SetOperation(s.normalspop)
	c:RegisterEffect(e1)
	local e2=e1:Clone()
	e2:SetCode(EVENT_SPSUMMON_SUCCESS)
	c:RegisterEffect(e2)
	--Special Summon 1 Plant Link Monster from your GY
	local e3=Effect.CreateEffect(c)
	e3:SetDescription(aux.Stringid(id,1))
	e3:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e3:SetType(EFFECT_TYPE_IGNITION)
	e3:SetRange(LOCATION_GRAVE)
	e3:SetCountLimit(1,{id,1})
	e3:SetCost(s.linkspcost)
	e3:SetTarget(s.linksptg)
	e3:SetOperation(s.linkspop)
	c:RegisterEffect(e3)
end
s.listed_series={SET_SUNAVALON}
function s.normalspconfilter(c)
	return c:IsSetCard(SET_SUNAVALON) and c:IsLinkMonster() and c:IsFaceup() 
end
function s.normalspcon(e,tp,eg,ep,ev,re,r,rp)
	return Duel.IsExistingMatchingCard(s.normalspconfilter,tp,LOCATION_MZONE,0,1,nil)
end
function s.normalspfilter(c,e,tp)
	return c:IsLevelBelow(4) and c:IsRace(RACE_PLANT) and c:IsType(TYPE_NORMAL)
		and c:IsCanBeSpecialSummoned(e,0,tp,false,false)
end
function s.normalsptg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsLocation(LOCATION_GRAVE) and chkc:IsControler(tp) and s.normalspfilter(chkc,e,tp) end
	if chk==0 then return Duel.GetLocationCount(tp,LOCATION_MZONE)>0
		and Duel.IsExistingTarget(s.normalspfilter,tp,LOCATION_GRAVE,0,1,nil,e,tp) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
	local g=Duel.SelectTarget(tp,s.normalspfilter,tp,LOCATION_GRAVE,0,1,1,nil,e,tp)
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,g,1,tp,0)
end
function s.normalspop(e,tp,eg,ep,ev,re,r,rp)
	local tc=Duel.GetFirstTarget()
	if tc:IsRelateToEffect(e) then
		Duel.SpecialSummon(tc,0,tp,tp,false,false,POS_FACEUP)
	end
end
function s.linkspcostfilter(c,tp)
	return c:IsLinkMonster() and c:IsAbleToRemoveAsCost() and Duel.GetMZoneCount(tp,c)>0
end
function s.linkspcost(e,tp,eg,ep,ev,re,r,rp,chk)
	local c=e:GetHandler()
	if chk==0 then return c:IsAbleToRemoveAsCost()
		and Duel.IsExistingMatchingCard(s.linkspcostfilter,tp,LOCATION_MZONE,0,1,nil,tp) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_REMOVE)
	local g=Duel.SelectMatchingCard(tp,s.linkspcostfilter,tp,LOCATION_MZONE,0,1,1,nil,tp)
	Duel.Remove((g+c),POS_FACEUP,REASON_COST)
end
function s.linkspfilter(c,e,tp)
	return c:IsRace(RACE_PLANT) and c:IsLinkMonster() and c:IsCanBeSpecialSummoned(e,0,tp,false,false)
		and Duel.IsExistingMatchingCard(Card.IsCode,tp,LOCATION_GRAVE,0,1,c,c:GetCode())
end
function s.linksptg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(s.linkspfilter,tp,LOCATION_GRAVE,0,1,nil,e,tp) end
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,nil,1,tp,LOCATION_GRAVE)
end
function s.linkspop(e,tp,eg,ep,ev,re,r,rp)
	if Duel.GetLocationCount(tp,LOCATION_MZONE)==0 then return end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
	local g=Duel.SelectMatchingCard(tp,s.linkspfilter,tp,LOCATION_GRAVE,0,1,1,nil,e,tp)
	if #g>0 then
		Duel.SpecialSummon(g,0,tp,tp,false,false,POS_FACEUP)
	end
end