/**
 * Broker utility functions for message broker operations
 */
import { MessageBrokerTypes } from '../../types';
import { IMessageBrokerService, BrokerConfig } from '../types';
/**
 * Check if running in browser environment
 */
export declare function isBrowser(): boolean;
/**
 * Validate SQS Queue URL format
 */
export declare function isValidSqsUrl(url: string): boolean;
/**
 * Dynamic import for broker services to support tree-shaking
 */
export declare function loadBrokerService(): Promise<((type: MessageBrokerTypes, config: BrokerConfig) => IMessageBrokerService) | null>;
/**
 * Parse event string to get broker tag and topic tag
 */
export declare function parseEventString(event: string): {
    brokerTag: string;
    topicTag: string;
};
/**
 * Get queue URL for AWS SQS based on environment
 */
export declare function getSqsQueueUrl(topic: {
    queueUrls?: Array<{
        env_slug: string;
        url: string;
    }>;
}, envSlug: string): string;