/**
 * enhance `redux-actions createAction` by adding a param `asyncCreator`,
 * work with `redux-validator redux-thunk redux-promise` middleware,
 * allow async promise to be created after validation
 */
export declare function createAction(actionType: string, payloadCreator?: (...args: any[]) => any, metaCreator?: (...args: any[]) => any, asyncCreator?: (...args: any[]) => Promise<any>): (...args: any[]) => any;