Doctrine\ODM\MongoDB\DocumentManager::createAggregationBuilder PHP Method

    public function createAggregationBuilder($documentName)
    {
        return new Aggregation\Builder($this, $documentName);
    }

 /**
  * Creates a new Aggregation\Builder instance that is prepopulated for this document name.
  *
  * @return Aggregation\Builder
  */
 public function createAggregationBuilder()
 {
     return $this->dm->createAggregationBuilder($this->documentName);
 }