import { Temporal } from "@js-temporal/polyfill";
import type { Disambiguation, Offset } from "../../types/index.js";
export declare function startOrEndOfUnix(value: number, unit: Temporal.DateUnit | Temporal.TimeUnit, options: {
    epochUnit?: "seconds" | "milliseconds";
    timeZone?: string;
    weekStartsOn?: "monday" | "sunday";
    disambiguation?: Disambiguation;
    offset?: Offset;
}, isEnd: boolean): number | null;