Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
2 Level 4 monsters You can detach 1 material from this card; Special Summon 1 LIGHT monster from your hand. If this card is in your GY, except the turn it was sent there: You can target 1 Level 4 LIGHT Fairy monster you control; Special Summon this card, and if you do, attach that monster to this card as material. You can only use each effect of "Starring Knight" once per turn.
--天翔ける騎士
--Starring Knight
--Scripted by Eerie Code
local s,id=GetID()
function s.initial_effect(c)
	--Xyz Summon procedure
	Xyz.AddProcedure(c,nil,4,2)
	c:EnableReviveLimit()
	--Special Summon from your hand
	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,0})
	e1:SetCost(Cost.DetachFromSelf(1,1,nil))
	e1:SetTarget(s.sptg)
	e1:SetOperation(s.spop)
	c:RegisterEffect(e1)
	--Special Summon itself from the GY
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,1))
	e2:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e2:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e2:SetType(EFFECT_TYPE_IGNITION)
	e2:SetRange(LOCATION_GRAVE)
	e2:SetCountLimit(1,{id,1})
	e2:SetCondition(aux.exccon)
	e2:SetTarget(s.sptg2)
	e2:SetOperation(s.spop2)
	c:RegisterEffect(e2)
end
function s.spfilter(c,e,tp)
	return c:IsAttribute(ATTRIBUTE_LIGHT) and c:IsCanBeSpecialSummoned(e,0,tp,false,false)
end
function s.sptg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.GetLocationCount(tp,LOCATION_MZONE)>0
		and Duel.IsExistingMatchingCard(s.spfilter,tp,LOCATION_HAND,0,1,nil,e,tp) end
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,nil,1,tp,LOCATION_HAND)
end
function s.spop(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.spfilter,tp,LOCATION_HAND,0,1,1,nil,e,tp)
	if #g>0 then
		Duel.SpecialSummon(g,0,tp,tp,false,false,POS_FACEUP)
	end
end
function s.matfilter(c)
	return c:IsFaceup() and c:IsLevel(4) and c:IsAttribute(ATTRIBUTE_LIGHT) and c:IsRace(RACE_FAIRY)
		and not c:IsType(TYPE_TOKEN)
end
function s.sptg2(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	local c=e:GetHandler()
	if chkc then return chkc:IsLocation(LOCATION_MZONE) and chkc:IsControler(tp) and s.matfilter(chkc) end
	if chk==0 then return Duel.GetLocationCount(tp,LOCATION_MZONE)>0
		and c:IsCanBeSpecialSummoned(e,0,tp,false,false)
		and Duel.IsExistingTarget(s.matfilter,tp,LOCATION_MZONE,0,1,nil) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_TARGET)
	Duel.SelectTarget(tp,s.matfilter,tp,LOCATION_MZONE,0,1,1,nil)
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,c,1,0,0)
end
function s.spop2(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	local tc=Duel.GetFirstTarget()
	if c:IsRelateToEffect(e) and Duel.SpecialSummon(c,0,tp,tp,false,false,POS_FACEUP)>0
		and tc:IsRelateToEffect(e) and s.matfilter(tc) and not tc:IsImmuneToEffect(e) then
		Duel.Overlay(c,tc,true)
	end
end