import { HttpMessage } from "@http4t/core/contract";
import { MessageLens, RoutingResult } from "../lenses";
/**
 * NB: does not _check_ `Content-Type` header when extracting, but does
 * _set_ it when injecting
 *
 */
export declare class TextLens<TMessage extends HttpMessage> implements MessageLens<TMessage, string> {
    get(message: TMessage): Promise<RoutingResult<string>>;
    set<SetInto extends TMessage>(into: SetInto, value: string): Promise<SetInto>;
}
export declare function text<TMessage extends HttpMessage = HttpMessage>(): TextLens<TMessage>;
//# sourceMappingURL=TextLens.d.ts.map