import { DataSeries } from '../../../../core';
import { DataSet } from '../../../../core/types/InsightsInstanceSlotData';
/**
 * Reshapes a flat comparison data_series into one shaped bar per month, sorted ascending by date —
 * the double-bar equivalent of buildChartData. Each month has exactly two contiguous rows; the
 * Income row becomes the comparison series and the other becomes main, regardless of wire order.
 * Months are then sorted ascending so the chart's bar index and the axis line up.
 */
export declare const buildComparisonSeries: (data: DataSeries | undefined, ariaLabel?: string) => DataSet[];