Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
When you take battle damage from an opponent's attacking monster: You can Special Summon this card from your hand, then you can Special Summon 1 monster from your hand with ATK less than or equal to the damage you took.
--パーリィナイツ
--Parry Knights
local s,id=GetID()
function s.initial_effect(c)
	--special summon
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e1:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_TRIGGER_O)
	e1:SetProperty(EFFECT_FLAG_DAMAGE_STEP)
	e1:SetRange(LOCATION_HAND)
	e1:SetCode(EVENT_DAMAGE)
	e1:SetCondition(s.condition)
	e1:SetTarget(s.target)
	e1:SetOperation(s.operation)
	c:RegisterEffect(e1)
end
function s.condition(e,tp,eg,ep,ev,re,r,rp)
	return ep==tp and tp~=rp and r&REASON_BATTLE~=0 and Duel.GetAttacker():IsControler(1-tp)
end
function s.target(e,tp,eg,ep,ev,re,r,rp,chk)
	local c=e:GetHandler()
	if chk==0 then return Duel.GetLocationCount(tp,LOCATION_MZONE)>0 and c:IsCanBeSpecialSummoned(e,0,tp,false,false) end
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,c,1,0,0)
end
function s.filter(c,e,tp,atk)
	return c:IsAttackBelow(atk) and c:IsCanBeSpecialSummoned(e,0,tp,false,false)
end
function s.operation(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	if not c:IsRelateToEffect(e) then return end
	if Duel.SpecialSummon(c,0,tp,tp,false,false,POS_FACEUP)~=0 then
		local g=Duel.GetMatchingGroup(s.filter,tp,LOCATION_HAND,0,nil,e,tp,ev)
		if Duel.GetLocationCount(tp,LOCATION_MZONE)>0 and #g>0
			and Duel.SelectYesNo(tp,aux.Stringid(id,1)) then
			Duel.BreakEffect()
			Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
			local sg=g:Select(tp,1,1,nil)
			Duel.SpecialSummon(sg,0,tp,tp,false,false,POS_FACEUP)
		end
	end
end