protected function doRewind()
 {
     $this->innerValues = new OrderedMap($this->innerIterator);
     parent::doRewind();
 }
 protected function doRewind()
 {
     $traversableFactory = $this->traversableFactory;
     $this->innerGroup = $traversableFactory(new OrderedMap($this->defaultIterator($this->innerIterator)));
     parent::doRewind();
 }
 protected function doRewind()
 {
     $this->innerGroups = (new OrderedMap($this->innerIterator))->groupBy($this->innerKeyFunction);
     parent::doRewind();
 }