import { HttpRequestData } from './types.js';
export interface HttpInterceptorConfig {
    trackSuccessfulRequests?: boolean;
    trackFailedRequests?: boolean;
    trackNetworkErrors?: boolean;
    excludeUrls?: (string | RegExp)[];
    includeRequestBody?: boolean;
    includeResponseBody?: boolean;
    maxBodySize?: number;
}
export declare class HttpInterceptor {
    private static instance;
    private config;
    private originalFetch;
    private originalXMLHttpRequest;
    private onError;
    private onResponse;
    private isPatched;
    private constructor();
    static getInstance(): HttpInterceptor;
    init(config: Partial<HttpInterceptorConfig>, onError: (error: Error, requestData: HttpRequestData) => void, onResponse?: (requestData: HttpRequestData) => void): void;
    private shouldTrackUrl;
    private generateRequestId;
    private truncateBody;
    private patchFetch;
    private patchXMLHttpRequest;
    private headersToObject;
    unpatch(): void;
}