import { ConnectionBase } from "./connection.base";
import { RequestType } from "../../types";
import { ExportRequest } from "../../proto/ultipa_pb";
import { RequestConfig, Response } from "../../types/types";
export declare class BaseExtra extends ConnectionBase {
    /**
     * Checking database server statistics.
     */
    stats(config?: RequestConfig): Promise<Response>;
    /**
     * Download file from server.
     */
    download(fileName: string, config: RequestType.CommonStreamRequire): Promise<import("@grpc/grpc-js").ClientReadableStream<import("../../proto/ultipa_pb").DownloadFileReply>>;
    /**
     * Exports nodes and edges from the current graph.
     */
    export(exportRequest: ExportRequest, listener: RequestType.ExportListener): Promise<void>;
}