public function enableLaunchphase($launchphase)
{
$this->launchphase = $launchphase;
$this->addExtension('launch', 'urn:ietf:params:xml:ns:launch-1.0');
$this->responses['Metaregistrar\\EPP\\eppLaunchCheckRequest'] = 'Metaregistrar\\EPP\\eppLaunchCheckResponse';
$this->responses['Metaregistrar\\EPP\\eppLaunchCreateDomainRequest'] = 'Metaregistrar\\EPP\\eppLaunchCreateDomainResponse';
}