/// <reference types="node" />
import { FetchResult, ServiceVersionModel } from '@sidetree/common';
import IpfsCas from './IpfsCas';
export default class IpfsCasWithCache extends IpfsCas {
    private cache;
    static readonly collectionName: string;
    private serverUrl;
    private databaseName;
    constructor(casUrl: string, serverUrl: string, databaseName: string);
    initialize(): Promise<void>;
    stop(): Promise<void>;
    write(content: Buffer): Promise<string>;
    read(address: string): Promise<FetchResult>;
    getServiceVersion: () => Promise<ServiceVersionModel>;
}