import type { State } from "./State";
import type { ActionMessage } from "../actions";
import type { ILeafReducer } from "./LeafReducer";
export default class DumbReducer<S extends State<string>> implements ILeafReducer<S, ActionMessage<S>> {
    private readonly key;
    private readonly providedState;
    constructor(keyOrState: string | State<string>);
    leaf(): string;
    prepareState(o: any): any;
    defaultState(o?: any): S;
}