import { F1, Curried, List } from "functools-ts";
import { Observable } from "rxjs";
export declare type DispatchOpts = {
    tag?: string;
    noReplay?: boolean;
    takeLatest?: boolean;
};
export declare type Continuation<S> = S | Promise<F1<S, S>> | Observable<F1<S, S>>;
export declare type UpdateFn<S> = F1<S, Continuation<S>>;
export declare type Transitions<S> = List<UpdateFn<S>>;
export declare type Update<S> = (UpdateFn<S> | Transitions<S>) & DispatchOpts;
export declare const defer: (f: () => void) => Promise<void>;
export declare const DispatchSymbol: unique symbol;
export declare type Dispatch<S> = ((update: Update<S>, opts?: DispatchOpts) => void) & {
    [DispatchSymbol]: boolean;
};
export interface Dispatcher<S> {
    dispatch: Dispatch<S>;
}
export declare type Get<S, S1> = F1<S, S1>;
export declare type Set<S, S1> = Curried<S1, S, S>;
export interface AsyncCallTracker {
    latestTimestampRecorded(name: string): number;
    record(name: string): number;
}
export declare const isPromise: <S>(cont: Continuation<S>) => cont is Promise<F1<S, S>>;
export declare const isObservable: <S>(cont: Continuation<S>) => cont is Observable<F1<S, S>>;
export declare const isDispatch: <S>(obj: any) => obj is Dispatch<S>;
export declare const nullDispatch: Dispatch<any>;
export interface GetAndSet<S, S1> {
    get: Get<S, S1>;
    set: Set<S, S1>;
}
export declare const isTransitions: <S>(update: Update<S>) => update is readonly F1<S, Continuation<S>>[];
export declare const childDispatchFromLens: <S, S1>(parentDispatch: Dispatch<S>, lens: GetAndSet<S, S1>) => Dispatch<S1>;
export declare const childDispatch: <S, K extends keyof S>(parentDispatch: Dispatch<S>, key: K) => Dispatch<S[K]>;
export declare const childDispatchFromIndex: <S, S1, K extends keyof S>(parentDispatch: Dispatch<S>, key: K, idx: number) => Dispatch<S1>;
export declare const asyncCallTracker: () => AsyncCallTracker;
export declare const takeLatest: <S>(update: Update<S>, name: string) => Update<S>;
export declare const disableReplay: <S>(update: Update<S>) => Update<S>;
export declare const transitions: <S>(...updates: F1<S, Continuation<S>>[]) => readonly F1<S, Continuation<S>>[];
export declare const tag: <S>(update: Update<S>, name: string) => Update<S>;