AggregateOperation1<? super T, ?, ? extends R0> aggrOp ) { return new WindowAggregateBuilder<>(streamStage(), aggrOp, windowDefinition());
return new WindowAggregateBuilder1<>(streamStage(), windowDefinition());
AggregateOperation1<? super T, ?, ? extends R0> aggrOp ) { return new WindowAggregateBuilder<>(streamStage(), aggrOp, windowDefinition());
return new WindowAggregateBuilder1<>(streamStage(), windowDefinition());