Orchestrator Workflow Action to Add a REST Host with Credentials

public RESTHostCreateWithCredentials(strName: string, strUrl: string, strUsername: string, strPassword: string): RESTHost {
let arrAuthenticationParams: string[] = ["Shared Session", strUsername, strPassword];
let objRESTAuthentication: RESTAuthentication = RESTAuthenticationManager.createAuthentication("Basic", arrAuthenticationParams);
let objRESTHost: RESTHost = new RESTHost(strName);
objRESTHost.url = strUrl;
objRESTHost.connectionTimeout = 30.0;
objRESTHost.operationTimeout = 60.0;
objRESTHost.authentication = objRESTAuthentication;
objRESTHost = RESTHostManager.addHost(objRESTHost);
return objRESTHost;
}