Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
Once per turn, when an opponent's monster declares an attack: You can target 1 other "Heroic" monster you control; this card gains ATK equal to that face-up monster's original ATK, until the end of the Battle Phase.
--H・C スパルタス
--Heroic Challenger - Spartan
local s,id=GetID()
function s.initial_effect(c)
	--atkup
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetCategory(CATEGORY_ATKCHANGE)
	e1:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_TRIGGER_O)
	e1:SetRange(LOCATION_MZONE)
	e1:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e1:SetCode(EVENT_ATTACK_ANNOUNCE)
	e1:SetCountLimit(1)
	e1:SetCondition(s.atkcon)
	e1:SetTarget(s.atktg)
	e1:SetOperation(s.atkop)
	c:RegisterEffect(e1)
end
s.listed_series={SET_HEROIC}
function s.atkcon(e,tp,eg,ep,ev,re,r,rp)
	return Duel.IsTurnPlayer(1-tp)
end
function s.filter(c)
	return c:IsFaceup() and c:IsSetCard(SET_HEROIC)
end
function s.atktg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsLocation(LOCATION_MZONE) and chkc:IsControler(tp) and s.filter(chkc) end
	if chk==0 then return Duel.IsExistingTarget(s.filter,tp,LOCATION_MZONE,0,1,e:GetHandler()) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_FACEUP)
	Duel.SelectTarget(tp,s.filter,tp,LOCATION_MZONE,0,1,1,e:GetHandler())
end
function s.atkop(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	local tc=Duel.GetFirstTarget()
	if c:IsFaceup() and c:IsRelateToEffect(e) and tc:IsFaceup() and tc:IsRelateToEffect(e) then
		local e1=Effect.CreateEffect(c)
		e1:SetType(EFFECT_TYPE_SINGLE)
		e1:SetCode(EFFECT_UPDATE_ATTACK)
		e1:SetValue(tc:GetBaseAttack())
		e1:SetReset(RESET_EVENT|RESETS_STANDARD|RESET_PHASE|PHASE_BATTLE)
		c:RegisterEffect(e1)
	end
end