public static void Run() { try { // ExStart:UpdateGmailContact GoogleTestUser User2 = new GoogleTestUser("user", "email address", "password", "clientId", "client secret"); string accessToken; string refreshToken; GoogleOAuthHelper.GetAccessToken(User2, out accessToken, out refreshToken); // Get IGmailclient using (IGmailClient client = GmailClient.GetInstance(accessToken, User2.EMail)) { Contact[] contacts = client.GetAllContacts(); Contact contact = contacts[0]; contact.JobTitle = "Manager IT"; contact.DepartmentName = "Customer Support"; contact.CompanyName = "Aspose"; contact.Profession = "Software Developer"; client.UpdateContact(contact); } // ExEnd:UpdateGmailContact } catch (Exception ex) { Console.WriteLine(ex.Message); } }