/**
 * Helper method to register new file with Template Asset(s) info
 *
 * @param   string   $template  The template name
 * @param   integer  $client    The application client id
 *
 * @return  self
 *
 * @since  4.0.0
 */
public function addTemplateRegistryFile(string $template, int $client) : self
{
    switch ($client) {
        case 0:
            $this->addRegistryFile('templates/' . $template . '/joomla.asset.json');
            break;
        case 1:
            $this->addRegistryFile('administrator/templates/' . $template . '/joomla.asset.json');
            break;
        default:
            break;
    }
    return $this;
}