import { Action } from "./create-action";
import { BasicOptions } from './create-basic-reducer';
import { Lens } from 'ramda';
import { PathResolver } from "./path-resolver";
export interface Options<T = any> extends BasicOptions<T> {
    timestampAccessor?: (action: Action) => Date;
    payloadAccessor?: (action: Action) => T;
    pathResolver?: Lens | PathResolver;
    keepPreviousStateOnStarted?: boolean;
}
export interface AsyncState<TState = any> {
    isFetching: boolean;
    error?: boolean;
    errorDescription?: string;
    exceptions?: any;
    state?: TState;
    didInvalidate?: boolean;
    timestamp?: Date;
    elapsed?: number;
}
export declare const getDefaultState: () => {
    isFetching: boolean;
    error?: boolean;
    errorDescription?: string;
    exceptions?: any;
    state?: any;
    didInvalidate?: boolean;
    timestamp?: Date;
    elapsed?: number;
};
export declare const createAsyncReducer: <T>(actionName: string, options?: Options<T>) => (state: any, action: Action<any, any>) => any;
export default createAsyncReducer;