Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
If you took damage by battle or an opponent's card effect this turn: Add 1 Level 4 or lower Cyberse monster from your Deck to your hand. You can only activate 1 "Cyberse Beacon" per turn.
--サイバース・ビーコン
--Cyberse Beacon
local s,id=GetID()
function s.initial_effect(c)
	--Activate
	local e1=Effect.CreateEffect(c)
	e1:SetCategory(CATEGORY_SEARCH+CATEGORY_TOHAND)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetCode(EVENT_FREE_CHAIN)
	e1:SetHintTiming(TIMING_END_PHASE)
	e1:SetCountLimit(1,id,EFFECT_COUNT_CODE_OATH)
	e1:SetCondition(s.condition)
	e1:SetTarget(s.target)
	e1:SetOperation(s.activate)
	c:RegisterEffect(e1)
	aux.GlobalCheck(s,function()
		local ge1=Effect.CreateEffect(c)
		ge1:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_CONTINUOUS)
		ge1:SetCode(EVENT_DAMAGE)
		ge1:SetOperation(s.checkop)
		Duel.RegisterEffect(ge1,0)
	end)
end
function s.checkop(e,tp,eg,ep,ev,re,r,rp)
	if (r&REASON_EFFECT~=0 and rp~=ep) or r&REASON_BATTLE~=0 then
		Duel.RegisterFlagEffect(ep,id,RESET_PHASE|PHASE_END,0,1)
	end
end
function s.condition(e,tp,eg,ep,ev,re,r,rp)
	return Duel.GetFlagEffect(tp,id)~=0
end
function s.filter(c)
	return c:IsAbleToHand() and c:IsRace(RACE_CYBERSE) and c:IsLevelBelow(4)
end
function s.target(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(s.filter,tp,LOCATION_DECK,0,1,nil) end
	Duel.SetOperationInfo(0,CATEGORY_TOHAND,nil,1,tp,LOCATION_DECK)
end
function s.activate(e,tp,eg,ep,ev,re,r,rp)
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_ATOHAND)
	local g=Duel.SelectMatchingCard(tp,s.filter,tp,LOCATION_DECK,0,1,1,nil)
	if #g>0 then
		Duel.SendtoHand(g,nil,REASON_EFFECT)
		Duel.ConfirmCards(1-tp,g)
	end
end