import { AfterErrorContext, AfterErrorHook, AfterSuccessContext, AfterSuccessHook, BeforeRequestContext, BeforeRequestHook, SDKInitHook, SDKInitOptions } from "./types";
export declare class HeadersHook implements SDKInitHook, BeforeRequestHook, AfterSuccessHook, AfterErrorHook {
    sdkInit(opts: SDKInitOptions): SDKInitOptions;
    beforeRequest(_: BeforeRequestContext, request: Request): Request;
    afterSuccess(_: AfterSuccessContext, response: Response): Response;
    afterError(_: AfterErrorContext, response: Response | null, error: unknown): {
        response: Response | null;
        error: unknown;
    };
}
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