| import { Subject } from './Subject';import { Subscriber } from './Subscriber';import { Subscription } from './Subscription';/** * @class BehaviorSubject<T> */export declare class BehaviorSubject<T> extends Subject<T> {    private _value;    constructor(_value: T);    readonly value: T;    /** @deprecated internal use only */ _subscribe(subscriber: Subscriber<T>): Subscription;    getValue(): T;    next(value: T): void;}
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