import { RetryOptions } from './types';
/**
 * Utility functions for Instagram n8n integration
 */
export declare class Utils {
    /**
     * Execute a function with retry logic and exponential backoff
     */
    static executeWithRetry<T>(operation: () => Promise<T>, options?: Partial<RetryOptions>): Promise<T>;
    /**
     * Create a delay promise
     */
    static delay(ms: number): Promise<void>;
    /**
     * Sanitize text input to prevent issues with Instagram API
     */
    static sanitizeText(text: string): string;
    /**
     * Generate random delay to avoid rate limiting
     */
    static randomDelay(min?: number, max?: number): Promise<void>;
    /**
     * Formats error messages consistently
     */
    static formatError(error: any): string;
    /**
     * Validates username format
     */
    static validateUsername(username: string): boolean;
    /**
     * Validates hashtag format
     */
    static validateHashtag(hashtag: string): string;
    /**
     * Validates image buffer
     */
    static validateImageBuffer(buffer: Buffer): boolean;
    /**
     * Validates and formats media ID
     */
    static validateMediaId(mediaId: string): string;
    /**
     * Extracts user ID from Instagram URL
     */
    static extractUserIdFromUrl(url: string): string | null;
    /**
     * Formats timestamp to human readable date
     */
    static formatTimestamp(timestamp: number): string;
    /**
     * Validates and limits numeric values
     */
    static validateLimit(limit: number | undefined, defaultValue: number, maxValue: number): number;
    /**
     * Creates a retry mechanism for API calls
     */
    static retry<T>(operation: () => Promise<T>, maxRetries?: number, baseDelay?: number): Promise<T>;
    /**
     * Checks if error is rate limit related
     */
    static isRateLimitError(error: any): boolean;
    /**
     * Generates a unique request ID for tracking
     */
    static generateRequestId(): string;
}