public static RORequest To(Uri baseUri, Resource resource, Dictionary<string, string> pathElementMap)
 {
     var resourceRequest = new RORequest
         {
             _baseUri = baseUri,
             _resource = resource,
             _pathElementMap = pathElementMap
         };
     return resourceRequest;
 }
 public static RORequest To(Uri baseUri, Resource resource, params String[] pathElements)
 {
     return new RORequest {_baseUri = baseUri, _resource = resource, _pathElements = pathElements};
 }