Using Cache Fasade in Laravel 5 Service Provider

I have to write Custom Service provider in Laravel 5 and I am getting this error:

[Symfony\Component\Debug\Exception\FatalErrorException] Call to undefined method Illuminate\Support\Facades\Cache::forever()

Here is my code:

<?php

namespace App\Providers;

use Illuminate\Support\ServiceProvider;
use TADPHP\TADFactory;
use Cache;


class TADServiceProvider extends ServiceProvider
{
    /**
     * Bootstrap the application services.
     *
     * @return void
     */
    public function boot()
    {
        //
    }

    /**
     * Register the application services.
     *
     * @return void
     */
    public function register()
    {
        $options = [
            'ip' => '192.168.0.201',
            'internal_id' => 1,
            'com_key' => 0,
            'soap_port' => 80,
            'udp_port' => 4370,
            'encoding' => 'utf-8',    // iso8859-1 by default.
            'connection_timeout' => 2
        ];

        Cache::forever('options', $options);

        // $this->app->instance('TADF',$this->app->make('TADPHP\TADFactory', [$options])->get_instance());

        $this->app->bind('TADF', 'TADPHP\TADFactory', function($app)
        {
            return new TADPHP\TADFactory(Cache::get('options'));
        });

    }
}

Basically I am trying to store the options array in cache and later in my app when I call app()->make('TADF') to get an instance of this class using the options stored in cache. I am new to Laravel, so there is a better way to do this. Thanks.

via Chebli Mohamed