private function loadExternalRef($reference)
    {
        list($prefix, $path) = parse_external_ref($reference);
        return $this->loaderManager->getLoader($prefix)->load($path);
    }
private function loadExternalRef($reference)
    {
        list($prefix, $path) = parse_external_ref($reference);
        return $this->loaderManager->getLoader($prefix)->load($path);
    }
private function loadExternalRef ( $ reference ) { list ( $ prefix , $ path ) = parse_external_ref ( $ reference ) ; return $ this -> loaderManager -> getLoader ( $ prefix ) -> load ( $ path ) ; }
Load an external ref and return the JSON object.

@param string $reference

@return object
Load an external ref and return the JSON object .