/**
  * @param BagOStuff $backend Permanent backend to use
  * @param array $params Parameters for HashBagOStuff
  */
 function __construct(BagOStuff $backend, $params = [])
 {
     unset($params['reportDupes']);
     // useless here
     parent::__construct($params);
     $this->backend = $backend;
     $this->attrMap = $backend->attrMap;
 }
 /**
  * @param BagOStuff $backend Permanent backend to use
  * @param array $params Parameters for HashBagOStuff
  */
 function __construct(BagOStuff $backend, $params = [])
 {
     $this->backend = $backend;
     parent::__construct($params);
 }