/**
 * Token Keep-Alive Scheduler
 *
 * Periodically runs Claude CLI to keep OAuth token refreshed.
 * Prevents token expiration during long idle periods.
 *
 * Default: Every 6 hours
 */
export interface TokenKeepAliveOptions {
    /** Interval in milliseconds (default: 6 hours) */
    intervalMs?: number;
    /** Callback on successful refresh */
    onRefresh?: () => void;
    /** Callback on refresh error */
    onError?: (error: Error) => void;
}
export declare class TokenKeepAlive {
    private readonly intervalMs;
    private readonly onRefresh?;
    private readonly onError?;
    private timer;
    private lastRefresh;
    constructor(options?: TokenKeepAliveOptions);
    /**
     * Start the keep-alive scheduler
     */
    start(): void;
    /**
     * Stop the keep-alive scheduler
     */
    stop(): void;
    /**
     * Manually refresh the token
     */
    refresh(): Promise<boolean>;
    /**
     * Get last refresh timestamp
     */
    getLastRefresh(): number | null;
    /**
     * Check if keep-alive is running
     */
    isRunning(): boolean;
    /**
     * Get time until next refresh (in milliseconds)
     */
    getTimeUntilNextRefresh(): number | null;
}
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