luaobject.go
func (lo *LuaObject) Push() {
	lo.l.RawGeti(lua.LUA_REGISTRYINDEX, lo.ref)
}
func (lo *LuaObject) Push() {
	lo.l.RawGeti(lua.LUA_REGISTRYINDEX, lo.ref)
}
// Push pushes this LuaObject on the stack.