Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
If this face-up card leaves the field: Special Summon 1 "Steam Token" (Aqua/WIND/Level 1/ATK 100/DEF 100). If this card is in your GY: You can Tribute 1 monster; Special Summon this card from the GY. You can only use this effect of "Blackwing - Steam the Cloak" once per Duel. If this card Summoned this way is used as Synchro Material, all other Synchro Materials must be "Blackwing" monsters.
--BF－隠れ蓑のスチーム
--Blackwing - Steam the Cloak
local s,id=GetID()
function s.initial_effect(c)
	--token
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetCategory(CATEGORY_SPECIAL_SUMMON+CATEGORY_TOKEN)
	e1:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_F)
	e1:SetCode(EVENT_LEAVE_FIELD)
	e1:SetCondition(s.tkcon)
	e1:SetTarget(s.tktg)
	e1:SetOperation(s.tkop)
	c:RegisterEffect(e1)
	--special summon
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,1))
	e2:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e2:SetType(EFFECT_TYPE_IGNITION)
	e2:SetRange(LOCATION_GRAVE)
	e2:SetCountLimit(1,id,EFFECT_COUNT_CODE_DUEL)
	e2:SetCost(s.spcost)
	e2:SetTarget(s.sptg)
	e2:SetOperation(s.spop)
	c:RegisterEffect(e2)
	local e4=Effect.CreateEffect(c)
	e4:SetProperty(EFFECT_FLAG_CANNOT_DISABLE+EFFECT_FLAG_UNCOPYABLE)
	e4:SetType(EFFECT_TYPE_SINGLE)
	e4:SetCode(EFFECT_SYNCHRO_MAT_RESTRICTION)
	e4:SetCondition(s.matcon)
	e4:SetValue(aux.TargetBoolFunction(Card.IsSetCard,SET_BLACKWING))
	c:RegisterEffect(e4)
end
s.listed_names={9047461}
s.listed_series={SET_BLACKWING}
function s.tkcon(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	return c:IsPreviousPosition(POS_FACEUP) and c:GetLocation()~=LOCATION_DECK
end
function s.tktg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return true end
	Duel.SetOperationInfo(0,CATEGORY_TOKEN,nil,1,tp,0)
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,nil,1,tp,0)
end
function s.tkop(e,tp,eg,ep,ev,re,r,rp)
	if Duel.GetLocationCount(tp,LOCATION_MZONE)>0 
		and Duel.IsPlayerCanSpecialSummonMonster(tp,id+1,0,TYPES_TOKEN,100,100,3,RACE_AQUA,ATTRIBUTE_WIND) then
		local token=Duel.CreateToken(tp,id+1)
		Duel.SpecialSummon(token,0,tp,tp,false,false,POS_FACEUP)
	end
end
function s.spcost(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.CheckReleaseGroupCost(tp,nil,1,false,nil,nil) end
	local sg=Duel.SelectReleaseGroupCost(tp,nil,1,1,false,nil,nil)
	Duel.Release(sg,REASON_COST)
end
function s.sptg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.GetLocationCount(tp,LOCATION_MZONE)>-1
		and e:GetHandler():IsCanBeSpecialSummoned(e,0,tp,false,false) end
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,e:GetHandler(),1,0,0)
end
function s.spop(e,tp,eg,ep,ev,re,r,rp)
	if Duel.GetLocationCount(tp,LOCATION_MZONE)<=0 then return end
	local c=e:GetHandler()
	if c:IsRelateToEffect(e) and Duel.SpecialSummon(c,0,tp,tp,false,false,POS_FACEUP)~=0 then
		c:RegisterFlagEffect(id,RESET_EVENT|RESETS_STANDARD,0,0)
	end
end
function s.matcon(e)
	return e:GetHandler():GetFlagEffect(id)>0
end