import { QRL } from '@builder.io/qwik';
export interface TimerProps {
    /**
     * The target expiry date/time. Accepts a date string, Date object, null, or undefined.
     * When null or undefined, no timers are set.
     */
    dateTime?: string | Date | null;
    /**
     * Number of minutes before the expiry time to trigger the onWarn$ callback.
     * Defaults to 5.
     */
    warnMinutes?: number;
    /**
     * Callback triggered when the warn threshold is reached (i.e., warnMinutes before expiry).
     */
    onWarn$?: QRL<() => void>;
    /**
     * Callback triggered when the dateTime has been reached (i.e., the session has expired).
     */
    onExpired$?: QRL<() => void>;
}
/**
 * Headless timer component that fires callbacks when a warn threshold or expiry time is reached.
 * Renders nothing — it is purely a behaviour component.
 * Properly cleans up the internal interval when the component is destroyed or dateTime changes.
 */
export declare const Timer: import("@builder.io/qwik").Component<TimerProps>;