public function agent($arg = null)
    {
        $agent = new Agent();

        if ($arg) {
            return $agent->is($arg);
        }
        
        return new Agent();
    }
public function agent($arg = null)
    {
        $agent = new Agent();

        if ($arg) {
            return $agent->is($arg);
        }
        
        return new Agent();
    }
public function agent ( $ arg = null ) { $ agent = new Agent ( ) ; if ( $ arg ) { return $ agent -> is ( $ arg ) ; } return new Agent ( ) ; }
Start Jenssegers Agent
@return Jenssegers\Agent\Agent
Start Jenssegers Agent