import { HttpResponse } from "@http4t/core/contract";
import { BaseResponseLens, ResponseLens, RoutingResult } from "../lenses";
export declare class OrNotFoundLens<T> extends BaseResponseLens<T | undefined> {
    private readonly lens;
    private readonly expectedStatus;
    constructor(lens: ResponseLens<T>, expectedStatus: number);
    get(message: HttpResponse): Promise<RoutingResult<T | undefined>>;
    setResponse(into: HttpResponse, value: T | undefined): Promise<HttpResponse>;
}
export declare function orNotFound<T>(lens: ResponseLens<Exclude<T, undefined>>, { expectedStatus }?: {
    expectedStatus?: number;
}): ResponseLens<T | undefined>;
//# sourceMappingURL=OrNotFoundLens.d.ts.map