how to setup SoftDelete behavior across project

namespace PhalconRest\Models;
use Phalcon\Mvc\Model\Behavior\SoftDelete;
use Phalcon\Mvc\Collection as Collection;

class ModelBase extends Collection {

 public function initialize() {

    $softDelete = new SoftDelete([
                'field' => 'is_deleted',
                'value' => 1
            ]);

    $this->addBehavior($softDelete);
}

}

Can you please suggest me how do I fix the below error.

PHP Fatal error:  Uncaught TypeError: Argument 1 passed to Phalcon\\Mvc\\Collection::addBehavior() must implement interface Phalcon\\Mvc\\Collection\\BehaviorInterface, instance of Phalcon\\Mvc\\Model\\Behavior\\SoftDelete given 

Thanks

edited Jan '19

We have this defined in AbstractModel as follows:

/**
 * Initialize method for AbsractModel
 */
public function initializeAbstractModel() {
    $this->keepSnapshots(true);
    $this->addBehavior(new SoftDelete(
        array(
            'field' => 'activated',
            'value' => 0
        )
    ));
    $this->skipAttributesOnCreate(array('activated'));
}