/**
 * Converts a JavaScript Date object to "time ago"
 * @param {Date} timestamp
 * @param {Intl.RelativeTimeFormatOptions & Intl.LocalesArgument} options
 * @example "5 hours ago"
 * @example "5h ago"
 * @returns {string}
 */
export declare function jsAgo(timestamp: Date, options?: Partial<Intl.RelativeTimeFormatOptions> & {
    locale?: Intl.LocalesArgument;
}): string;