| Package | Description | 
|---|---|
| com.hazelcast.jet.pipeline | The Pipeline API is Jet's high-level API to build and execute
 distributed computation jobs. | 
| Modifier and Type | Method and Description | 
|---|---|
| default <R0> GroupAggregateBuilder<K,R0> | BatchStageWithKey. aggregateBuilder(AggregateOperation1<? super T,?,? extends R0> aggrOp0)Offers a step-by-step API to build a pipeline stage that co-aggregates
 the data from several input stages. | 
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