Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
Target 1 Gemini monster you control; it becomes an Effect Monster and gains its effects, also return it to the hand during the End Phase of this turn. * The above text is unofficial and describes the card's functionality in the OCG.
--スペシャル・デュアル・サモン
--Super Double Summon
local s,id=GetID()
function s.initial_effect(c)
	--Activate
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetCode(EVENT_FREE_CHAIN)
	e1:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e1:SetTarget(s.target)
	e1:SetOperation(s.operation)
	c:RegisterEffect(e1)
end
s.listed_card_types={TYPE_GEMINI}
function s.filter(c)
	return c:IsFaceup() and c:IsType(TYPE_GEMINI) and not c:IsGeminiStatus()
end
function s.target(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsControler(tp) and chkc:IsLocation(LOCATION_MZONE) and s.filter(chkc) end
	if chk==0 then return Duel.IsExistingTarget(s.filter,tp,LOCATION_MZONE,0,1,nil) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_TARGET)
	local g=Duel.SelectTarget(tp,s.filter,tp,LOCATION_MZONE,0,1,1,nil)
end
function s.operation(e,tp,eg,ep,ev,re,r,rp)
	local tc=Duel.GetFirstTarget()
	if tc and tc:IsRelateToEffect(e) and s.filter(tc) then
		tc:EnableGeminiStatus()
		--Return to the hand in the End Phase
		local e1=Effect.CreateEffect(e:GetHandler())
		e1:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_CONTINUOUS)
		e1:SetCode(EVENT_PHASE+PHASE_END)
		e1:SetRange(LOCATION_MZONE)
		e1:SetCountLimit(1)
		e1:SetOperation(s.thop)
		e1:SetReset(RESETS_STANDARD_PHASE_END)
		tc:RegisterEffect(e1,true)
	end
end
function s.thop(e,tp,eg,ep,ev,re,r,rp)
	Duel.SendtoHand(e:GetHandler(),nil,REASON_EFFECT)
end