public function excludeOnClone()
    {
        return [
            $this->model->getKeyName(),
            $this->model->getCreatedAtColumn(),
            $this->model->getUpdatedAtColumn(),
        ];
    }
public function excludeOnClone()
    {
        return [
            $this->model->getKeyName(),
            $this->model->getCreatedAtColumn(),
            $this->model->getUpdatedAtColumn(),
        ];
    }
public function excludeOnClone ( ) { return [ $ this -> model -> getKeyName ( ) , $ this -> model -> getCreatedAtColumn ( ) , $ this -> model -> getUpdatedAtColumn ( ) , ] ; }
An Array of Fields to Exclude on Clone.

When cloning a Model ceratin data might need to be skipped
either because it is irrelevant (such as datestamps) or
because it is primary or unique data in the database.

@return array
An Array of Fields to Exclude on Clone .