import { TraceSource } from "./TraceSource";
import { IDestroyable } from "../interfaces";
export declare class Registry {
    static readonly instance: Registry;
    private _registry;
    private _listeners;
    private _nextCookie;
    get(id: string): TraceSource;
    has(id: string): boolean;
    add(id: any, source: TraceSource): void;
    _onNewSource(source: TraceSource): void;
    on(handler: (source: TraceSource) => void): IDestroyable;
}