/**
 * Retry and backoff utilities
 */
/**
 * Sleep for a specified duration
 *
 * @param ms - Duration in milliseconds
 * @returns Promise that resolves after the duration
 */
export declare function sleep(ms: number): Promise<void>;
/**
 * Calculate exponential backoff delay
 *
 * Formula: baseDelay * 2^attempt (clamped to maxDelay)
 *
 * @param attempt - Current attempt number (0-based)
 * @param baseDelay - Base delay in milliseconds (default: 1000)
 * @param maxDelay - Maximum delay in milliseconds (default: 30000)
 * @returns Delay in milliseconds
 *
 * @example
 * ```typescript
 * calculateBackoff(0) // 1000ms (1s)
 * calculateBackoff(1) // 2000ms (2s)
 * calculateBackoff(2) // 4000ms (4s)
 * calculateBackoff(3) // 8000ms (8s)
 * calculateBackoff(4) // 16000ms (16s)
 * calculateBackoff(5) // 30000ms (capped at maxDelay)
 * ```
 */
export declare function calculateBackoff(attempt: number, baseDelay?: number, maxDelay?: number): number;
/**
 * Default reconnection settings
 */
export declare const RECONNECT_DEFAULTS: {
    /** Maximum number of reconnection attempts */
    readonly maxAttempts: 5;
    /** Base delay for exponential backoff (1 second) */
    readonly baseDelay: 1000;
    /** Maximum delay between attempts (30 seconds) */
    readonly maxDelay: 30000;
};
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