export { TlsVersion, SocketType, SocketDomain } from "../common/io";
import { SocketType, SocketDomain } from "../common/io";
export declare function is_alpn_available(): boolean;
declare type BodyData = string | object | ArrayBuffer | ArrayBufferView | Blob | File;
export declare class InputStream {
    data: BodyData;
    constructor(data: BodyData);
}
/**
 * Standard Berkeley socket style options.
 *
 * Provided for compatibility with nodejs, but this version is largely unused.
*/
export declare class SocketOptions {
    type: SocketType;
    domain: SocketDomain;
    connect_timeout_ms: number;
    keepalive: boolean;
    keep_alive_interval_sec: number;
    keep_alive_timeout_sec: number;
    keep_alive_max_failed_probes: number;
    constructor(type?: SocketType, domain?: SocketDomain, connect_timeout_ms?: number, keepalive?: boolean, keep_alive_interval_sec?: number, keep_alive_timeout_sec?: number, keep_alive_max_failed_probes?: number);
}