interface Natives {
    open: (method: string, url: string, async?: boolean) => void;
    send: (body?: Document | XMLHttpRequestBodyInit | null) => void;
    setRequestHeader: (name: string, value: string) => void;
    abort: () => void;
}
export default class ShadowXhrBridge {
    readonly shadow: XMLHttpRequest;
    private readonly original;
    private readonly natives;
    private readonly savedDescriptors;
    private savedGetResponseHeader;
    private savedGetAllResponseHeaders;
    private installedGetResponseHeader;
    private installedGetAllResponseHeaders;
    private started;
    private terminated;
    constructor(original: XMLHttpRequest, natives: Natives);
    start(url: string, headers?: Record<string, string>): void;
    abort(): void;
    private prepareOriginal;
    private wireShadow;
    private mirror;
    private cleanup;
}
export {};