import { BaseObservableMap } from "./BaseObservableMap";
import { BaseObservableValue } from "../value/BaseObservableValue";
export declare class ObservableValueMap<K, V> extends BaseObservableMap<K, V> {
    private readonly key;
    private readonly observableValue;
    private subscription?;
    constructor(key: K, observableValue: BaseObservableValue<V>);
    onSubscribeFirst(): void;
    onUnsubscribeLast(): void;
    [Symbol.iterator](): Iterator<[K, V]>;
    get size(): number;
    get(key: K): V | undefined;
}