/**
* @return string
*/
public function getEnabledLibrariesAsString()
{
if (empty($this->enabledLibraries)) {
$this->enabledLibraries = implode(',', $this->libraries->getEnabledLibraries());
}
return $this->enabledLibraries;
}
/**
* @param string $identifier
* @param array $library
* @return $this
*/
public function addLibrary($identifier, array $library)
{
$this->libraries->addLibrary($identifier, $library);
return $this;
}
