Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
Equip only to a Level 6 or lower Fusion Monster. It gains 1500 ATK/DEF.
--フュージョン・ウェポン
--Fusion Weapon
local s,id=GetID()
function s.initial_effect(c)
	aux.AddEquipProcedure(c,nil,s.filter)
	--atk up
	local e2=Effect.CreateEffect(c)
	e2:SetType(EFFECT_TYPE_EQUIP)
	e2:SetCode(EFFECT_UPDATE_ATTACK)
	e2:SetValue(1500)
	c:RegisterEffect(e2)
	--def up
	local e3=Effect.CreateEffect(c)
	e3:SetType(EFFECT_TYPE_EQUIP)
	e3:SetCode(EFFECT_UPDATE_DEFENSE)
	e3:SetValue(1500)
	c:RegisterEffect(e3)
end
function s.filter(c)
	return c:IsType(TYPE_FUSION) and c:IsLevelBelow(6)
end