Method getUpdateModel

/**
 * Retrieves the Update model from com_joomlaupdate
 *
 * @return mixed
 *
 * @since 4.0.0
 *
 * @throws \Exception
 */
public function getUpdateModel()
{
    if (!isset($this->updateModel)) {
        $this->setUpdateModel();
    }
    return $this->updateModel;
}