import { LitElement } from 'lit';
/**
 * ```typescript
 * import '@blueprintui/components/include/format-relative-time.js';
 * ```
 *
 * ```html
 * <bp-format-relative-time>2024-11-16T10:30:00Z</bp-format-relative-time>
 * ```
 *
 * @summary The format-relative-time component displays relative time (e.g., "2 hours ago", "in 3 days") using the Intl.RelativeTimeFormat API.
 * @element bp-format-relative-time
 * @since 2.10.0
 */
export declare class BpFormatRelativeTime extends LitElement {
    #private;
    /** determines how to format the time: 'auto' shows "yesterday" vs "1 day ago" */
    accessor numeric: 'always' | 'auto';
    /** determines the formatting style: 'long', 'short', or 'narrow' */
    accessor formatStyle: 'long' | 'short' | 'narrow';
    /** the time unit to use, or 'auto' to automatically select the best unit */
    accessor unit: 'second' | 'minute' | 'hour' | 'day' | 'week' | 'month' | 'year' | 'auto';
    /** auto-update the displayed time at appropriate intervals */
    accessor sync: boolean;
    /** locale to use for formatting */
    accessor locale: string;
    private accessor _value;
    private accessor _now;
    static styles: CSSStyleSheet[];
    render(): import("lit").TemplateResult<1>;
    connectedCallback(): void;
    disconnectedCallback(): void;
    updated(changedProperties: Map<string, any>): void;
}