* @param proxyPort Port of proxy.
* @return the current {@link Builder} instance
*/
public Builder proxy(String proxyHost, int proxyPort) {
if (this.proxy == null) {
this.proxy = new ProxyConfig(Proxy.Type.HTTP);
}
this.proxy.setProxyHost(proxyHost);
this.proxy.setProxyPort(proxyPort);
return this;
}