import { HookFunction } from './type';
export declare class XhrInterceptor {
    readonly nativeXhr: {
        new (): XMLHttpRequest;
        prototype: XMLHttpRequest;
        readonly UNSENT: 0;
        readonly OPENED: 1;
        readonly HEADERS_RECEIVED: 2;
        readonly LOADING: 3;
        readonly DONE: 4;
    };
    readonly nativeXhrPrototype: XMLHttpRequest;
    hooks: HookFunction[];
    private readonly xhrContructorKeys;
    private xhrResponseEvents;
    private xhrAssignedMethodOverrides;
    private xhrInstanceAttr;
    private xhrInstanceAttrHandler;
    private xhrMethodsHandler;
    constructor();
    inject(): void;
    uninject(): void;
    private parseHeaders;
    private responseProcessor;
    private headersEqual;
    private getAssignedMethodOverride;
    private setAssignedMethodOverride;
    private getCaptureOption;
    private getAttrHandler;
    private _generateProxyXMLHttpRequest;
}