import { HttpMessage } from "@http4t/core/contract";
import { MessageLens, RoutingError, RoutingResult } from "../lenses";
export declare class AlwaysFailLens<TMessage extends HttpMessage = HttpMessage, T = unknown> implements MessageLens<TMessage, T> {
    private readonly error;
    constructor(error: (message: TMessage) => RoutingError);
    get(message: TMessage): Promise<RoutingResult<T>>;
    set<SetInto extends TMessage>(into: SetInto, value: T): Promise<SetInto>;
}
export declare function fail<TMessage extends HttpMessage = HttpMessage, T = unknown>(error: RoutingError): MessageLens<TMessage, T>;
export declare function fail<TMessage extends HttpMessage = HttpMessage, T = unknown>(error: (message: TMessage) => RoutingError): MessageLens<TMessage, T>;
//# sourceMappingURL=AlwaysFailLens.d.ts.map