/**
 * RetryService - Retry logic for resilient network operations
 *
 * Features:
 * - Exponential backoff
 * - Configurable retry policies
 * - Error filtering (only retry on specific errors)
 * - Timeout support
 */
export interface RetryOptions {
    maxAttempts?: number;
    initialDelayMs?: number;
    maxDelayMs?: number;
    backoffMultiplier?: number;
    timeout?: number;
    retryableErrors?: string[];
    onRetry?: (_error: Error, _attempt: number) => void;
}
export declare class RetryService {
    private static instance;
    private logger;
    private constructor();
    static getInstance(): RetryService;
    /**
     * Execute function with retry logic
     */
    execute<T>(fn: () => Promise<T>, options?: RetryOptions): Promise<T>;
    /**
     * Execute with timeout
     */
    private withTimeout;
    /**
     * Check if error is retryable
     */
    private isRetryable;
    /**
     * Sleep for specified milliseconds
     */
    private sleep;
    /**
     * Retry SSH operations specifically
     */
    retrySSH<T>(fn: () => Promise<T>): Promise<T>;
    /**
     * Retry download operations specifically
     */
    retryDownload<T>(fn: () => Promise<T>): Promise<T>;
}
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