Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
You can Special Summon this card (from your hand) by discarding 1 card.
--THE トリッキー
--The Tricky
local s,id=GetID()
function s.initial_effect(c)
	--special summon
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_FIELD)
	e1:SetCode(EFFECT_SPSUMMON_PROC)
	e1:SetProperty(EFFECT_FLAG_UNCOPYABLE)
	e1:SetRange(LOCATION_HAND)
	e1:SetCondition(s.spcon)
	e1:SetTarget(s.sptg)
	e1:SetOperation(s.spop)
	c:RegisterEffect(e1)
end
function s.spcon(e,c)
	if c==nil then return true end
	local tp=c:GetControler()
	local rg=Duel.GetMatchingGroup(Card.IsDiscardable,tp,LOCATION_HAND,0,e:GetHandler())
	return aux.SelectUnselectGroup(rg,e,tp,1,1,aux.ChkfMMZ(1),0,c)
end
function s.sptg(e,tp,eg,ep,ev,re,r,rp,c)
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_DISCARD)
	local rg=Duel.GetMatchingGroup(Card.IsDiscardable,tp,LOCATION_HAND,0,e:GetHandler())
	local g=aux.SelectUnselectGroup(rg,e,tp,1,1,aux.ChkfMMZ(1),1,tp,HINTMSG_DISCARD,nil,nil,true)
	if #g>0 then
		g:KeepAlive()
		e:SetLabelObject(g)
		return true
	end
	return false
end
function s.spop(e,tp,eg,ep,ev,re,r,rp,c)
	local g=e:GetLabelObject()
	if not g then return end
	Duel.SendtoGrave(g,REASON_DISCARD|REASON_COST)
	g:DeleteGroup()
end