Knockout-Lite/app/Console/Commands/Subforums.php

<?php

namespace App\Console\Commands;

use Illuminate\Console\Command;
use App\Knockout\Subforum;

class Subforums extends Command {

    protected $name = 'knockout:subforums';
    protected $description = 'Fetch new subforum list';

    public function handle()
    {
        Subforum::updateCache();
    }

}