import { ResponseLens } from "../lenses";
import { Result } from "@http4t/result";
export type AuthError = {
    reason: 'unauthorized' | 'forbidden';
    message: string;
};
/**
 * Gets/sets {@link AuthError} as json response body, with {@link AuthError#reason} mapped to response codes of:
 *
 * * 'unauthorized' <-> 401
 * * 'forbidden' <-> 403
 */
export declare function authError(): ResponseLens<AuthError>;
export declare function authErrorOr<T>(successLens: ResponseLens<T>): ResponseLens<Result<AuthError, T>>;
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