import { BaseObservableValue } from "./BaseObservableValue";
export declare class MappedObservableValue<P, C> extends BaseObservableValue<C> {
    private readonly source;
    private readonly mapper;
    private sourceSubscription?;
    constructor(source: BaseObservableValue<P>, mapper: (value: P) => C);
    onUnsubscribeLast(): void;
    onSubscribeFirst(): void;
    get(): C;
}