import * as Exectime from "./exectime";
import * as Filesize from "./filesize";
import * as History from "./history";
export interface GroupComparisons<Comparison extends Exectime.Comparison | Filesize.Comparison> {
    [groupName: string]: Comparison[];
}
export declare const findPreviousGroup: <G extends History.Group>(history: History.Type<G> | undefined, groupName: string) => G | undefined;
export interface FindPreviousItem {
    (previousGroup: Filesize.Group, currentItem: Filesize.Item): Filesize.Item | undefined;
    (previousGroup: Exectime.Group, currentItem: Exectime.Item): Exectime.Item | undefined;
}
export declare const findPreviousItem: FindPreviousItem;