资源：如何在Laravel中通过HTTP请求传递整个对象？

When we generate a controller as resource this is onee of the functions we get:

/**
     * Display the specified resource.
     *
     * @param  \App\Model $model
     * @return \Illuminate\Http\Response
     */
    public function show(Model $model)
    {
        //
    }

My question is how do I pass a whole object instead of just an id. is it more convenient?