code: public static Bson out(final String collectionName, final AggregateOutStageOptions options) {
          notNull("collectionName", collectionName);
          notNull("options", options);
          return new OutStage(collectionName, options);
      }
docs: Creates a $out pipeline stage using the specified collection name and options
  
  @param collectionName the collection name
  @param options the $out stage options
  @return the $out pipeline stage
  @mongodb.driver.manual reference/operator/aggregation/out/  $out
  @mongodb.server.release 2.6