Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
If you control a face-up "Don Zaloog": You can Special Summon any number of "Dark Scorpion" monsters from your hand, but only 1 copy of each.
--黒蠍団召集
--Mustering of the Dark Scorpions
local s,id=GetID()
function s.initial_effect(c)
	--activate
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e1:SetCode(EVENT_FREE_CHAIN)
	e1:SetCondition(s.con)
	e1:SetTarget(s.tg)
	e1:SetOperation(s.op)
	c:RegisterEffect(e1)
end
s.listed_series={SET_DARK_SCORPION}
s.listed_names={76922029}
function s.cfilter(c)
	return c:IsFaceup() and c:IsCode(76922029)
end
function s.con(e,tp,eg,ep,ev,re,r,rp)
	return Duel.IsExistingMatchingCard(s.cfilter,tp,LOCATION_ONFIELD,0,1,nil)
end
function s.filter(c,e,tp)
	return c:IsSetCard(SET_DARK_SCORPION) and c:IsCanBeSpecialSummoned(e,0,tp,false,false)
end
function s.tg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.GetLocationCount(tp,LOCATION_MZONE)>0 
		and Duel.IsExistingMatchingCard(s.filter,tp,LOCATION_HAND,0,1,nil,e,tp)
	end
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,nil,1,tp,LOCATION_HAND)
end
function s.op(e,tp,eg,ep,ev,re,r,rp)
	local ft=Duel.GetLocationCount(tp,LOCATION_MZONE)
	if ft<=0 then return end
	local g=Duel.GetMatchingGroup(s.filter,tp,LOCATION_HAND,0,nil,e,tp)
	if #g==0 then return end
	local sg=aux.SelectUnselectGroup(g,e,tp,1,ft,aux.dncheck,1,tp,HINTMSG_SPSUMMON)
	Duel.SpecialSummon(sg,0,tp,tp,false,false,POS_FACEUP)
end