Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
When this card is Normal Summoned: You can target 1 Level 4 or lower "HERO" monster in your GY, except "Elemental HERO Liquid Soldier"; Special Summon it. If this card is sent to the GY, or banished, as material for the Fusion Summon of a "HERO" monster: You can draw 2 cards, then discard 1 card. You can only use 1 "Elemental HERO Liquid Soldier" effect per turn, and only once that turn. * The above text is unofficial and describes the card's functionality in the OCG.
--E・HERO リキッドマン
--Elemental HERO Liquid Soldier
--Logical Nonsense
--Substitute ID
local s,id=GetID()
function s.initial_effect(c)
	--Special Summon 1 Level 4 or lower "HERO" monster from the GY
	local e1=Effect.CreateEffect(c)
	e1:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e1:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_O)
	e1:SetCode(EVENT_SUMMON_SUCCESS)
	e1:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e1:SetCountLimit(1,id)
	e1:SetTarget(s.sptg)
	e1:SetOperation(s.spop)
	c:RegisterEffect(e1)
	--Draw 2 cards if it is sent to GY or banished for the Fusion summon of a "HERO" monster
	local e2=Effect.CreateEffect(c)
	e2:SetCategory(CATEGORY_DRAW+CATEGORY_HANDES)
	e2:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_O)
	e2:SetCode(EVENT_BE_MATERIAL)
	e2:SetProperty(EFFECT_FLAG_DAMAGE_STEP+EFFECT_FLAG_DELAY+EFFECT_FLAG_PLAYER_TARGET)
	e2:SetCountLimit(1,id)
	e2:SetCondition(s.drcon)
	e2:SetTarget(s.drtg)
	e2:SetOperation(s.drop)
	c:RegisterEffect(e2)
end
s.listed_names={id}
	--Part of "HERO" archetype
s.listed_series={SET_HERO}
	--Check for level 4 or lower "HERO" monster
function s.spfilter(c,e,tp)
	return c:IsSetCard(SET_HERO) and c:IsLevelBelow(4) and c:IsCanBeSpecialSummoned(e,0,tp,false,false)
		and not c:IsCode(id)
end
	--Activation legality
function s.sptg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsLocation(LOCATION_GRAVE) and chkc:IsControler(tp) and s.spfilter(chkc,e,tp) end
	if chk==0 then return Duel.GetLocationCount(tp,LOCATION_MZONE)>0
		and Duel.IsExistingTarget(s.spfilter,tp,LOCATION_GRAVE,0,1,nil,e,tp) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
	local g=Duel.SelectTarget(tp,s.spfilter,tp,LOCATION_GRAVE,0,1,1,nil,e,tp)
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,g,1,tp,LOCATION_GRAVE)
end
	--Revive 1 level 4 or lower "HERO" monster
function s.spop(e,tp,eg,ep,ev,re,r,rp)
	local tc=Duel.GetFirstTarget()
	if tc:IsRelateToEffect(e) then
		Duel.SpecialSummon(tc,0,tp,tp,false,false,POS_FACEUP)
	end
end
	--If sent to GY or banished as fusion material for "HERO" monster
function s.drcon(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	local rc=c:GetReasonCard()
	return c:IsLocation(LOCATION_GRAVE|LOCATION_REMOVED) and rc:IsSetCard(SET_HERO) and r & REASON_FUSION == REASON_FUSION
end
	--Activation legality
function s.drtg(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)
	Duel.SetOperationInfo(0,CATEGORY_HANDES,nil,0,tp,1)
end
	--Draw 2, discard 1
function s.drop(e,tp,eg,ep,ev,re,r,rp)
	local p,d=Duel.GetChainInfo(0,CHAININFO_TARGET_PLAYER,CHAININFO_TARGET_PARAM)
	if Duel.Draw(p,d,REASON_EFFECT)==2 then
		Duel.ShuffleHand(p)
		Duel.BreakEffect()
		Duel.DiscardHand(p,nil,1,1,REASON_EFFECT|REASON_DISCARD)
	end
end