private function get($identifier)
    {
        $fileSystem= $this->getConfigFileSystem();

        if($fileSystem->has($identifier)){
            return json_decode($fileSystem->read($identifier),true);
        }

        return false;
    }
private function get($identifier)
    {
        $fileSystem= $this->getConfigFileSystem();

        if($fileSystem->has($identifier)){
            return json_decode($fileSystem->read($identifier),true);
        }

        return false;
    }
private function get ( $ identifier ) { $ fileSystem = $ this -> getConfigFileSystem ( ) ; if ( $ fileSystem -> has ( $ identifier ) ) { return json_decode ( $ fileSystem -> read ( $ identifier ) , true ) ; } return false ; }
Retrieve the given element from list of portable element
@param string $identifier
@return string
Retrieve the given element from list of portable element