public PageRegistrationConfirmation(string contentRel, string contentUri)
     : this()
 {
     Next = new RestResponseNextElement {
         Type = "application/html", Rel = contentRel, Uri = contentUri
     };
 }
 public PageRegistrationConfirmation(string contentRel, string contentUri)
     : this()
 {
     Next = new RestResponseNextElement { Type = "application/html", Rel = contentRel, Uri = contentUri };
 }