Inheritance: extends eZ\Publish\Core\REST\Common\Output\Generator
 /**
  * Initializes the generator
  *
  * @return \eZ\Publish\Core\REST\Common\Output\Generator
  */
 protected function initializeGenerator()
 {
     $generator = new Common\Output\Generator\Xml($this->getFieldTypeHashGenerator());
     $generator->setFormatOutput(true);
     return $generator;
 }