Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
If you control exactly 2 Machine Effect Monsters and no other monsters: Draw 2 cards. For the rest of this turn after this card resolves, you can only Special Summon once. You can only activate 1 "Iron Draw" per turn.
--アイアンドロー
--Iron Draw
local s,id=GetID()
function s.initial_effect(c)
	--Draw 2 cards
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetCategory(CATEGORY_DRAW)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetCode(EVENT_FREE_CHAIN)
	e1:SetProperty(EFFECT_FLAG_PLAYER_TARGET)
	e1:SetCountLimit(1,id)
	e1:SetCondition(s.condition)
	e1:SetTarget(s.target)
	e1:SetOperation(s.activate)
	c:RegisterEffect(e1)
end
function s.cfilter(c)
	return c:IsFaceup() and c:IsRace(RACE_MACHINE) and c:IsType(TYPE_EFFECT)
end
function s.condition(e,tp,eg,ep,ev,re,r,rp)
	local g=Duel.GetMatchingGroup(nil,tp,LOCATION_MZONE,0,nil)
	return #g==2 and g:FilterCount(s.cfilter,nil)==2
end
function s.target(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsPlayerCanDraw(tp,2) end
	Duel.SetTargetPlayer(tp)
	Duel.SetTargetParam(2)
	Duel.SetOperationInfo(0,CATEGORY_DRAW,nil,0,tp,2)
end
function s.activate(e,tp,eg,ep,ev,re,r,rp)
	local spc=Duel.GetActivityCount(tp,ACTIVITY_SPSUMMON)
	local c=e:GetHandler()
	local p,d=Duel.GetChainInfo(0,CHAININFO_TARGET_PLAYER,CHAININFO_TARGET_PARAM)
	Duel.Draw(p,d,REASON_EFFECT)
	if not e:IsHasType(EFFECT_TYPE_ACTIVATE) then return end
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_FIELD)
	e1:SetCode(EFFECT_CANNOT_SPECIAL_SUMMON)
	e1:SetProperty(EFFECT_FLAG_PLAYER_TARGET)
	e1:SetTargetRange(1,0)
	e1:SetTarget(s.limittg)
	e1:SetReset(RESET_PHASE|PHASE_END)
	e1:SetLabel(spc)
	Duel.RegisterEffect(e1,tp)
	local e2=e1:Clone()
	e2:SetCode(EFFECT_LEFT_SPSUMMON_COUNT)
	e2:SetValue(s.countval)
	Duel.RegisterEffect(e2,tp)
	aux.RegisterClientHint(c,nil,tp,1,0,aux.Stringid(id,1),nil)
end
function s.limittg(e,c,tp)
	local sp=Duel.GetActivityCount(tp,ACTIVITY_SPSUMMON)
	return sp-e:GetLabel()>=1
end
function s.countval(e,re,tp)
	local sp=Duel.GetActivityCount(tp,ACTIVITY_SPSUMMON)
	if sp-e:GetLabel()>=1 then return 0 else return 1-sp+e:GetLabel() end
end