/// <reference types="node" />
/// <reference types="node" />
export default class ProxyUtil {
    static env: NodeJS.ProcessEnv;
    static get httpProxy(): string | undefined;
    static get httpsProxy(): string | undefined;
    static get noProxy(): string | undefined;
    static shouldDodgeProxy(host: string): boolean;
    static usingProxy(host?: string): boolean;
    static get sslCertDir(): Array<string>;
    static get sslCertFile(): Array<string>;
    static get certs(): Array<Buffer>;
    static agent(https: boolean, host?: string): any;
}