/**
 * Retry utility with exponential backoff
 */
export interface RetryOptions {
    maxAttempts?: number;
    initialDelayMs?: number;
    maxDelayMs?: number;
    backoffMultiplier?: number;
}
/**
 * Retry a function with exponential backoff
 *
 * @param fn - Async function to retry
 * @param options - Retry configuration
 * @param shouldRetry - Optional function to determine if error is retryable
 * @returns Result of the function
 */
export declare function retryWithBackoff<T>(fn: () => Promise<T>, options?: RetryOptions, shouldRetry?: (error: any, attempt: number) => boolean): Promise<T>;
/**
 * Check if an error is related to UTXO not being found
 */
export declare function isUtxoNotFoundError(error: any): boolean;
/**
 * Determine if an error should trigger a retry
 */
export declare function shouldRetryError(error: any, attempt: number): boolean;
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