export declare class XHR {
    static realOpen: (method: string, url: string) => void;
    static realSend: (body?: Document | BodyInit | null) => void;
    static hasSetup: boolean;
    static interceptors: Function[];
    static setup(force?: boolean): void;
    static add(interceptor: (request: XHR.ExtendedXMLHttpRequest, data?: string | Document | Blob | ArrayBufferView | ArrayBuffer | FormData | URLSearchParams | ReadableStream<Uint8Array> | null) => void): void;
}
export declare namespace XHR {
    interface ExtendedXMLHttpRequest extends XMLHttpRequest {
        $url?: string;
    }
}