/// <reference types="node" />
import EventEmitter from "events";
import DHTFlood from "@lumeweb/dht-flood";
export default class DHTCache extends EventEmitter {
    protected swarm: any;
    private id;
    private bootstrapped;
    private graph;
    private connectedTo;
    private heartBeatInterval;
    protected flood: DHTFlood;
    private log;
    constructor(swarm: any, { id, heartBeatInterval, ...opts }?: {
        id?: Buffer;
        [key: string]: any;
    });
    private _cache;
    get cache(): string[];
    get allCache(): string[];
    peerHasItem(peer: string | Buffer, item: string | Buffer): boolean;
    addItem(item: string | Buffer): void;
    private _compileMessage;
    private _broadcastMessage;
    removeItem(item: string | Buffer): boolean;
    private _online;
    get online(): Set<string>;
    broadcast(message: any, ttl?: number): void;
    send(peer: any, message: any): void;
    protected addPeerHandler(peer: any): void;
    removePeerHandler(peer: any): void;
    protected onRemovePeer(peer: any): void;
    protected onGetBroadcast(message: Buffer, id: Buffer): void;
    private _signItem;
    private _setEntity;
    private _ensureItem;
    private _ensurePeer;
    private _ensureEntity;
    private _hasSeenEntity;
    private _addEntityConnection;
    private _removeEntityConnection;
    private _removeEntity;
    private _bootstrapFrom;
    private _getBootstrapInfo;
    private _recalculate;
    private _maybeHexify;
    private _pruneItems;
    private _heartbeatCheck;
    private _emitHeartbeat;
}
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