created a public RestToken object that is used when providing tokens to the user.

src/Discord.Net.Rest/Entities/Users/RestToken.cs

@@ -0,0 +1,23 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Model = Discord.API.Rest.Token;
+
+namespace Discord.Rest
+{
+    public class RestToken
+    {
+        public string Token { get; set; }
+        public TokenType TokenType { get; set; }
+        public DateTimeOffset ExpiresIn { get; set; }
+        public string RefreshToken { get; set; }
+        public IEnumerable<string> Scopes { get; set; }
+
+        internal static RestToken Create(BaseDiscordClient discord, Model model)
+        {
+            return new RestToken { ExpiresIn = DateTimeOffset.UtcNow.AddSeconds(model.ExpiresIn), Token = model.AccessToken, TokenType = TokenType.Bearer, RefreshToken = model.RefreshToken, Scopes = model.Scope.Split(' ') };
+        }
+    }
+}