protected function generateAppointment($issuerId, $businessId, $contactId, $serviceId, Carbon $startAt, Carbon $finishAt, $comments = null, $humanresourceId = null)
{
$appointment = new Appointment();
$appointment->doReserve();
$appointment->setStartAtAttribute($startAt);
$appointment->setFinishAtAttribute($finishAt);
$appointment->business()->associate($businessId);
$appointment->issuer()->associate($issuerId);
$appointment->contact()->associate($contactId);
$appointment->service()->associate($serviceId);
$appointment->humanresource()->associate($humanresourceId);
$appointment->comments = $comments;
$appointment->doHash();
return $appointment;
}