/**
 * RPC client for Nano node with fallback server support
 */
declare class RPC {
    private rpcURLs;
    private workURLs;
    private customHeaders;
    constructor(rpcURL: string | string[], workURL: string | string[], customHeaders?: HeadersInit);
    account_info(account: string): Promise<any>;
    work_generate(hash: string): Promise<string>;
    receivable(account: string): Promise<any>;
    process(block: any, subtype: string): Promise<any>;
    private execute;
}
export { RPC };