import { DataSeriesExtended } from '../../types';
export declare function integrate(timestamps: number[], values: DataSeriesExtended): number;
export declare function countNumbers(values: DataSeriesExtended, from?: number, to?: number): number;
export declare function getLast(values: DataSeriesExtended, from?: number, to?: number): number | null;
export declare const safeMin: (values: DataSeriesExtended, from?: number, to?: number) => number | null;
export declare const safeMax: (values: DataSeriesExtended, from?: number, to?: number) => number | null;
export declare const safeSum: (values: DataSeriesExtended, from?: number, to?: number) => number | null;