Adds remaining core methods to make 2FA providers work if you know how to wire it up

src/Umbraco.Web/Models/SendCodeViewModel.cs

@@ -0,0 +1,22 @@
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.ComponentModel.DataAnnotations;
+using System.Runtime.Serialization;
+
+namespace Umbraco.Web.Models
+{
+    /// <summary>
+    /// Used for 2FA verification
+    /// </summary>
+    [DataContract(Name = "code", Namespace = "")]
+    public class Verify2FACodeModel
+    {
+        [Required]
+        [DataMember(Name = "code", IsRequired = true)]
+        public string Code { get; set; }
+
+        [Required]
+        [DataMember(Name = "provider", IsRequired = true)]
+        public string Provider { get; set; }
+    }
+}