import { WatcherProxy, WebsocketPayload } from "../interfaces";
import { Observable } from "rxjs";
/**
 * @description Watcher Proxy decorator
 * This class can be use to cache a watcher proxy stream so it return an existing stream when it is asked the same request multiple time
 */
export declare class CachedWatcherProxy implements WatcherProxy {
    private watcher;
    private watchMap;
    watch(transactionId: string, address: string, network: string, nbConf: number): Observable<WebsocketPayload>;
    unwatch(transactionId: string, address: string, network: string, nbConf: number): Observable<void>;
    constructor(watcher: WatcherProxy);
}
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