Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
Special Summon this card as an Effect Monster (Thunder-Type/LIGHT/Level 5/ATK 1900/DEF 0). (This card is also still a Trap Card.) If Summoned this way, this card cannot be destroyed by battle.
--深淵のスタングレイ
--Abyss Stungray
local s,id=GetID()
function s.initial_effect(c)
	--Special summon itself as a monster
	local e1=Effect.CreateEffect(c)
	e1:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetCode(EVENT_FREE_CHAIN)
	e1:SetTarget(s.target)
	e1:SetOperation(s.activate)
	e1:SetHintTiming(0,TIMING_END_PHASE)
	c:RegisterEffect(e1)
end
function s.target(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.GetLocationCount(tp,LOCATION_MZONE)>0
		and Duel.IsPlayerCanSpecialSummonMonster(tp,id,0,TYPE_MONSTER|TYPE_EFFECT,1900,0,5,RACE_THUNDER,ATTRIBUTE_LIGHT) end
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,e:GetHandler(),1,0,0)
end
function s.activate(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	if not c:IsRelateToEffect(e) then return end
	if Duel.GetLocationCount(tp,LOCATION_MZONE)<=0
		or not Duel.IsPlayerCanSpecialSummonMonster(tp,id,0,TYPE_MONSTER|TYPE_EFFECT,1900,0,5,RACE_THUNDER,ATTRIBUTE_LIGHT) then return end
	c:AddMonsterAttribute(TYPE_EFFECT+TYPE_TRAP)
	Duel.SpecialSummonStep(c,0,tp,tp,true,false,POS_FACEUP)
	c:AddMonsterAttributeComplete()
	--Cannot be destroyed by battle
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(3000)
	e1:SetType(EFFECT_TYPE_SINGLE)
	e1:SetProperty(EFFECT_FLAG_SINGLE_RANGE+EFFECT_FLAG_CLIENT_HINT)
	e1:SetCode(EFFECT_INDESTRUCTABLE_BATTLE)
	e1:SetRange(LOCATION_MZONE)
	e1:SetValue(1)
	e1:SetReset(RESET_EVENT|RESETS_STANDARD)
	c:RegisterEffect(e1,true)
	Duel.SpecialSummonComplete()
end