/**
 * Runner Heartbeat Module
 *
 * Sends periodic heartbeats to the Lia server to maintain presence.
 * This is what makes a runner "connected" - NOT the pairing token.
 *
 * Both local and VM runners use this same module.
 */
export type RunnerType = 'local' | 'vm';
export interface HeartbeatConfig {
    runnerType: RunnerType;
    capabilities?: string[];
    onError?: (error: Error) => void;
    onSuccess?: () => void;
}
/**
 * Start the heartbeat loop
 */
export declare function startHeartbeat(config: HeartbeatConfig): void;
/**
 * Stop the heartbeat loop
 */
export declare function stopHeartbeat(): void;
/**
 * Get current heartbeat state (for diagnostics)
 */
export declare function getHeartbeatState(): {
    isRunning: boolean;
    runnerId: string | null;
    lastSuccess: Date | null;
    consecutiveFailures: number;
};