Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
Activate 1 of these effects; ● Add 1 Wyrm monster from your Deck to your hand. ● Send any number of Wyrm monsters from your hand and/or face-up from your field to the GY; draw cards equal to the number of monsters you sent to the GY +1.
--幽麗なる幻滝
--Waterfall of Dragon Souls
local s,id=GetID()
function s.initial_effect(c)
	--Activate
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetCategory(CATEGORY_TOHAND+CATEGORY_SEARCH)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetCode(EVENT_FREE_CHAIN)
	e1:SetHintTiming(0,TIMING_END_PHASE)
	e1:SetTarget(s.target)
	e1:SetOperation(s.activate)
	c:RegisterEffect(e1)
	--Activate2
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,1))
	e2:SetCategory(CATEGORY_DRAW)
	e2:SetType(EFFECT_TYPE_ACTIVATE)
	e2:SetProperty(EFFECT_FLAG_PLAYER_TARGET)
	e2:SetCode(EVENT_FREE_CHAIN)
	e2:SetHintTiming(0,TIMING_END_PHASE)
	e2:SetCost(s.cost)
	e2:SetTarget(s.target2)
	e2:SetOperation(s.activate2)
	c:RegisterEffect(e2)
end
function s.filter(c)
	return c:IsRace(RACE_WYRM) and c:IsAbleToHand()
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
function s.filter2(c)
	return (c:IsLocation(LOCATION_HAND) or c:IsFaceup()) and c:IsRace(RACE_WYRM) and c:IsAbleToGraveAsCost()
end
function s.cost(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(s.filter2,tp,LOCATION_MZONE|LOCATION_HAND,0,1,nil) end
	local ft=Duel.GetFieldGroupCount(tp,LOCATION_DECK,0)
	local g=Duel.GetMatchingGroup(s.filter2,tp,LOCATION_MZONE|LOCATION_HAND,0,nil)
	local ct=math.min(ft-1,#g+1)
	local sg=g:Select(tp,1,ct,nil)
	e:SetLabel(#sg+1)
	Duel.SendtoGrave(sg,REASON_COST)
end
function s.target2(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsPlayerCanDraw(tp,2) end
	Duel.SetTargetPlayer(tp)
	Duel.SetTargetParam(e:GetLabel())
	Duel.SetOperationInfo(0,CATEGORY_DRAW,nil,0,tp,e:GetLabel())
end
function s.activate2(e,tp,eg,ep,ev,re,r,rp)
	local p,d=Duel.GetChainInfo(0,CHAININFO_TARGET_PLAYER,CHAININFO_TARGET_PARAM)
	Duel.Draw(p,d,REASON_EFFECT)
end