import { Period } from "../utils/types.external";
import { InternalSimpleTimeline } from "../utils/types.internal";
export declare const useTimelineRows: (rows: any, startDate: Date, endDate: Date, direction: "left" | "right") => InternalSimpleTimeline[];
export declare const useEarliestDate: ({ startDate, rows, }: {
    startDate?: Date;
    rows: Pick<Period, "start">[][];
}) => Date;
export declare const useLatestDate: ({ endDate, rows }: any) => any;