Netson\L4gettext\L4gettextServiceProvider::registerInstallCommand PHP Method

    public function registerInstallCommand()
    {
        // add fetch command to artisan
        $this->app['l4gettext.install'] = $this->app->share(function ($app) {
            return new Commands\InstallCommand(new ProcessBuilder());
        });
        $this->commands('l4gettext.install');
    }