/**
 * Live Activity bridge — controls the Lock Screen / Dynamic Island workout widget.
 *
 * All methods are no-ops on Android and on iOS < 16.1 (handled natively).
 * The user must enable Live Activities from Appearance settings; they are OFF
 * by default and can be toggled without restarting a session.
 *
 * Update frequency: call `update()` on every GPS fix (native side throttles
 * ActivityKit pushes to avoid rate-limiting).
 */
export declare const LiveActivity: {
    /**
     * Persist user preference for Live Activities (survives app restarts).
     */
    setEnabled(enabled: boolean): void;
    /**
     * Read current user preference.
     */
    isEnabled(): Promise<boolean>;
    /**
     * Start the Live Activity for a workout session.
     * Silently no-ops if user has not enabled Live Activities.
     */
    start(name: string, activityType: string): Promise<void>;
    /**
   * Push updated workout metrics to the Live Activity.
   * Fire-and-forget — elapsed time ticks on the lock screen via native `.timer` style;
   * you do not need to push every second.
   *
   * @param duration  Legacy bridge param (ignored by native widget timer)
     * @param pace      Formatted string e.g. "5:23"
     * @param speed     km/h
     * @param calories  kcal estimate
     * @param gpsStatus "strong" | "medium" | "weak" | "lost"
     * @param isPaused  Auto-pause state
     */
    update(distance: number, duration: number, pace: string, speed: number, calories: number, gpsStatus: string, isPaused: boolean): void;
    /**
     * End the Live Activity and dismiss it from the lock screen immediately.
     */
    end(distance: number, duration: number, calories: number): Promise<void>;
    /**
     * Dismiss all Live Activities (stale widgets after crash or without a clean stop).
     */
    dismissAll(): Promise<void>;
};
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