Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
Cannot be Summoned unless you control a face-up "Shooting Star Bow - Ceal". You can send 1 Equip Spell Card you control that is equipped to this card to the Graveyard to target 1 monster your opponent controls; destroy that target.
--ガーディアン・シール
--Guardian Ceal
local s,id=GetID()
function s.initial_effect(c)
	--sum limit
	local e1=Effect.CreateEffect(c)
	e1:SetProperty(EFFECT_FLAG_CANNOT_DISABLE+EFFECT_FLAG_UNCOPYABLE)
	e1:SetType(EFFECT_TYPE_SINGLE)
	e1:SetCode(EFFECT_CANNOT_SUMMON)
	e1:SetCondition(s.sumlimit)
	c:RegisterEffect(e1)
	local e2=e1:Clone()
	e2:SetCode(EFFECT_CANNOT_FLIP_SUMMON)
	c:RegisterEffect(e2)
	local e3=e1:Clone()
	e3:SetCode(EFFECT_SPSUMMON_CONDITION)
	c:RegisterEffect(e3)
	--destroy
	local e4=Effect.CreateEffect(c)
	e4:SetDescription(aux.Stringid(id,0))
	e4:SetCategory(CATEGORY_DESTROY)
	e4:SetType(EFFECT_TYPE_IGNITION)
	e4:SetRange(LOCATION_MZONE)
	e4:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e4:SetCost(s.descost)
	e4:SetTarget(s.destg)
	e4:SetOperation(s.desop)
	c:RegisterEffect(e4)
end
s.listed_names={95638658}
function s.sumlimit(e)
	return not Duel.IsExistingMatchingCard(aux.FaceupFilter(Card.IsCode,95638658),e:GetHandlerPlayer(),LOCATION_ONFIELD,0,1,nil)
end
function s.costfilter(c,ec)
	return c:IsFaceup() and c:GetEquipTarget()==ec and c:IsAbleToGraveAsCost()
end
function s.descost(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(s.costfilter,tp,LOCATION_SZONE,0,1,nil,e:GetHandler()) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_TOGRAVE)
	local g=Duel.SelectMatchingCard(tp,s.costfilter,tp,LOCATION_SZONE,0,1,1,nil,e:GetHandler())
	Duel.SendtoGrave(g,REASON_COST)
end
function s.destg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsLocation(LOCATION_MZONE) and chkc:IsControler(1-tp) end
	if chk==0 then return Duel.IsExistingTarget(aux.TRUE,tp,0,LOCATION_MZONE,1,nil) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_DESTROY)
	local g=Duel.SelectTarget(tp,aux.TRUE,tp,0,LOCATION_MZONE,1,1,nil)
	Duel.SetOperationInfo(0,CATEGORY_DESTROY,g,1,0,0)
end
function s.desop(e,tp,eg,ep,ev,re,r,rp)
	local tc=Duel.GetFirstTarget()
	if tc:IsRelateToEffect(e) then
		Duel.Destroy(tc,REASON_EFFECT)
	end
end