protected function initFlash()
{
$this->di->setShared('flash', function () {
return new Flash(['error' => 'alert alert-danger fade in', 'success' => 'alert alert-success fade in', 'notice' => 'alert alert-info fade in', 'warning' => 'alert alert-warning fade in']);
});
$this->di->setShared('flashSession', function () {
return new FlashSession(['error' => 'alert alert-danger fade in', 'success' => 'alert alert-success fade in', 'notice' => 'alert alert-info fade in', 'warning' => 'alert alert-warning fade in']);
});
}