Created Unassigned: How to Add Image In Header Using ClosedXML [9350]

Error At AddImage(imagePath,XLHFOccurrence.FirstPage);
Error : The method or operation is not implemented.

var workbook = new XLWorkbook();
var worksheet = workbook.Worksheets.Add("Covering Letter",1);
// worksheet = InsertHeaderFooter(worksheet);
//worksheet.PageSetup.Header.Right.AddText("THis is header");
string imagePath = System.Web.Hosting.HostingEnvironment.MapPath("~/Content/img/tuv-logo.jpg");
worksheet.PageSetup.Header.Right.AddImage(imagePath,XLHFOccurrence.FirstPage);