import type { ChildObservable, InitializedObservable, Observable, ObservableBase, Operator, Subscription, ToInitializedOperator, Token } from '../types';
export declare class ObservableBaseClass<A, Kind extends ObservableBase<A>['kind'], Depth extends ObservableBase<A>['depth']> implements ObservableBase<A> {
    #private;
    readonly id: import("../types").ObservableId;
    readonly kind: Kind;
    readonly type: import("../types").ObservableType;
    readonly depth: Depth;
    constructor({ kind, type, depth, currentValueInit, }: Readonly<{
        kind: Kind;
        type: ObservableBase<A>['type'];
        depth: Depth;
        currentValueInit: ObservableBase<A>['currentValue'];
    }>);
    addChild<B>(child: ChildObservable<B>): void;
    get currentValue(): ObservableBase<A>['currentValue'];
    protected getCurrentValue(): ObservableBase<A>['currentValue'];
    get isCompleted(): boolean;
    get token(): Token;
    get hasSubscriber(): boolean;
    get hasChild(): boolean;
    hasActiveChild(): boolean;
    protected setNext(nextValue: A, token: Token): void;
    tryUpdate(_token: Token): void;
    tryComplete(): void;
    complete(): void;
    chain<B>(operator: ToInitializedOperator<A, B>): InitializedObservable<B>;
    chain<B>(operator: Operator<A, B>): Observable<B>;
    subscribe(onNext: (v: A) => void, onComplete?: () => void): Subscription;
}