import { HTTPClient, HTTPClientOptions, HTTPRequest, HTTPResponse, HTTPStreamClient, HTTPStreamRequest, StreamAdapter } from "./http-client";
import { QueryRequest } from "../wire-protocol";
/**
 * An implementation for {@link HTTPClient} that uses the node http package
 */
export declare class NodeHTTP2Client implements HTTPClient, HTTPStreamClient {
    #private;
    private constructor();
    /**
     * Gets a {@link NodeHTTP2Client} matching the {@link HTTPClientOptions}
     * @param httpClientOptions - the {@link HTTPClientOptions}
     * @returns a {@link NodeHTTP2Client} matching the {@link HTTPClientOptions}
     */
    static getClient(httpClientOptions: HTTPClientOptions): NodeHTTP2Client;
    /** {@inheritDoc HTTPClient.request} */
    request<T = QueryRequest>(req: HTTPRequest<T>): Promise<HTTPResponse>;
    /** {@inheritDoc HTTPStreamClient.stream} */
    stream(req: HTTPStreamRequest): StreamAdapter;
    /** {@inheritDoc HTTPClient.close} */
    close(): void;
    /**
     * @returns true if this client has been closed, false otherwise.
     */
    isClosed(): boolean;
}