import { type Some } from 'ts-data-forge';
import { type MutableSet } from 'ts-type-forge';
import { type AsyncChildObservable, type ChildObservable, type InitializedObservable, type InitializedSyncChildObservable, type KeepInitialValueOperator, type NonEmptyUnknownList, type Observable, type ObservableId, type Operator, type SyncChildObservable, type WithInitialValueOperator, type Wrap } from '../types/index.mjs';
import { ObservableBaseClass } from './observable-base-class.mjs';
export declare class AsyncChildObservableClass<A, const P extends NonEmptyUnknownList> extends ObservableBaseClass<A, 'async child', number> implements AsyncChildObservable<A, P> {
    #private;
    readonly parents: Readonly<{ [P_1 in keyof P]: Observable<P[P_1]>; }>;
    protected readonly descendantsIdSet: MutableSet<ObservableId>;
    constructor({ parents, depth, initialValue, }: Readonly<{
        parents: Wrap<P>;
        depth?: number;
        initialValue: ReturnType<AsyncChildObservable<A>['getSnapshot']>;
    }>);
    addDescendant<B>(child: ChildObservable<B>): void;
    startUpdate(nextValue: A): void;
    complete(): void;
    tryComplete(): void;
}
export declare class SyncChildObservableClass<A, const P extends NonEmptyUnknownList> extends ObservableBaseClass<A, 'sync child', number> implements SyncChildObservable<A, P> {
    readonly parents: Readonly<{ [P_1 in keyof P]: Observable<P[P_1]>; }>;
    constructor({ parents, depth, initialValue, }: Readonly<{
        parents: Wrap<P>;
        depth?: number;
        initialValue: ReturnType<SyncChildObservable<A>['getSnapshot']>;
    }>);
    complete(): void;
    tryComplete(): void;
}
export declare class InitializedSyncChildObservableClass<A, const P extends NonEmptyUnknownList> extends SyncChildObservableClass<A, P> implements InitializedSyncChildObservable<A, P> {
    constructor({ parents, depth, initialValue, }: Readonly<{
        parents: Wrap<P>;
        depth?: number;
        initialValue: ReturnType<InitializedSyncChildObservable<A>['getSnapshot']>;
    }>);
    getSnapshot(): Some<A>;
    pipe<B>(operator: KeepInitialValueOperator<A, B> | WithInitialValueOperator<A, B>): InitializedObservable<B>;
    pipe<B>(operator: Operator<A, B>): Observable<B>;
}
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