/**
 * Retry Utility
 *
 * Provides retry logic with exponential backoff for failed operations.
 */
/**
 * Options for retry behavior.
 */
export interface RetryOptions {
    /**
     * Maximum number of retry attempts.
     * @default 3
     */
    maxAttempts?: number;
    /**
     * Base delay in milliseconds before first retry.
     * @default 1000
     */
    baseDelayMs?: number;
    /**
     * Maximum delay in milliseconds between retries.
     * @default 10000
     */
    maxDelayMs?: number;
    /**
     * Multiplier for exponential backoff.
     * @default 2
     */
    backoffMultiplier?: number;
    /**
     * Function to determine if an error should trigger a retry.
     * By default, retries on all errors.
     */
    shouldRetry?: (error: Error, attempt: number) => boolean;
    /**
     * Callback invoked before each retry attempt.
     */
    onRetry?: (error: Error, attempt: number, delayMs: number) => void;
}
/**
 * Executes a function with retry logic and exponential backoff.
 *
 * @param fn - The async function to execute
 * @param options - Retry configuration options
 * @returns The result of the function
 * @throws The last error if all retries are exhausted
 *
 * @example
 * ```typescript
 * const result = await withRetry(
 *   () => fetchData(),
 *   { maxAttempts: 3, baseDelayMs: 1000 }
 * );
 * ```
 */
export declare function withRetry<T>(fn: () => Promise<T>, options?: RetryOptions): Promise<T>;