import { Action, ActionType } from './Action';
export declare type AsyncStatus = 'resolved' | 'rejected';
export interface Binding {
    name: string;
    actionType: ActionType;
    asyncStatus?: AsyncStatus;
}
export declare abstract class Reducer<$State> {
    abstract state: $State;
    private _syncActionHandlerMap;
    private _asyncResolvedActionHandlerMap;
    private _asyncRejectedActionHandlerMap;
    constructor();
    getBindings(): Binding[];
    bindActionHandler(name: string, actionType: ActionType, asyncStatus?: AsyncStatus): void;
    applyAction({type, payload, asyncStatus}: Action<any>): $State;
    private _detectActionHandlerMap(asyncStatus?);
}