Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
If you have no cards in your Pendulum Zones: Add 2 face-up "Magician" Pendulum Monsters with different names from your Extra Deck to your hand. You can only activate 1 "Amazing Pendulum" per turn.
--アメイジング・ペンデュラム
--Amazing Pendulum
local s,id=GetID()
function s.initial_effect(c)
	--Activate
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetCode(EVENT_FREE_CHAIN)
	e1:SetCountLimit(1,id,EFFECT_COUNT_CODE_OATH)
	e1:SetCondition(s.condition)
	e1:SetTarget(s.target)
	e1:SetOperation(s.activate)
	c:RegisterEffect(e1)
end
s.listed_series={SET_MAGICIAN}
function s.condition(e,tp,eg,ep,ev,re,r,rp)
	return not Duel.GetFieldCard(tp,LOCATION_PZONE,0) and not Duel.GetFieldCard(tp,LOCATION_PZONE,1)
end
function s.thfilter(c)
	return c:IsFaceup() and c:IsSetCard(SET_MAGICIAN) and c:IsType(TYPE_PENDULUM) and c:IsAbleToHand()
end
function s.target(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then
		local g=Duel.GetMatchingGroup(s.thfilter,tp,LOCATION_EXTRA,0,nil)
		return g:GetClassCount(Card.GetCode)>=2
	end
	Duel.SetOperationInfo(0,CATEGORY_TOHAND,nil,2,tp,LOCATION_EXTRA)
end
function s.activate(e,tp,eg,ep,ev,re,r,rp)
	local g=Duel.GetMatchingGroup(s.thfilter,tp,LOCATION_EXTRA,0,nil)
	if g:GetClassCount(Card.GetCode)>=2 then
		Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_ATOHAND)
		local g1=g:Select(tp,1,1,nil)
		g:Remove(Card.IsCode,nil,g1:GetFirst():GetCode())
		Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_ATOHAND)
		local g2=g:Select(tp,1,1,nil)
		g1:Merge(g2)
		Duel.SendtoHand(g1,nil,REASON_EFFECT)
		Duel.ConfirmCards(1-tp,g1)
	end
end