TwoStepMultipleColumnsHandler
constructor(stepTwoAggregationHandler: AggregatorAggregationHandler<Return & Any, Return>? = null, stepTwoInputHandler: AggregatorInputHandler<Return & Any, Return>? = null)
Parameters
stepTwoAggregationHandler
The aggregation handler for the second step. If not supplied, the handler of the first step is reused.
stepTwoInputHandler
The input handler for the second step. If not supplied, the handler of the first step is reused.