import { Emitter } from "@welshman/lib";
export declare class Tracker extends Emitter {
    relaysById: Map<string, Set<string>>;
    idsByRelay: Map<string, Set<string>>;
    constructor();
    getIds: (relay: string) => Set<string>;
    getRelays: (eventId: string) => Set<string>;
    hasRelay: (eventId: string, relay: string) => boolean | undefined;
    addRelay: (eventId: string, relay: string) => void;
    removeRelay: (eventId: string, relay: string) => void;
    track: (eventId: string, relay: string) => boolean;
    copy: (eventId1: string, eventId2: string) => void;
    load: (relaysById: Tracker["relaysById"]) => void;
    clear: () => void;
}
//# sourceMappingURL=tracker.d.ts.map