import { SqupContext } from '../types/SqupContext.js';
export type DateFormat = 'ISO-8601' | 'Ticks' | 'Unix';
export type CompressTimeSeriesOptions = {
    dateFormat?: DateFormat;
    interval?: string;
    valueColumn?: string | string[];
    trimBefore?: Date;
    trimAfter?: Date;
};
export declare function CompressTimeSeries(data: Record<string, unknown>[], timestampColumn: string, squpContext: SqupContext, opts?: CompressTimeSeriesOptions): Record<string, unknown>[];