public static bool TryGetGlimpseRuntime(this NancyContext context, out IGlimpseRuntime runtime)
 {
     if (context.Items.ContainsKey(RuntimeKey))
     {
         runtime = (IGlimpseRuntime)context.Items[RuntimeKey];
         return true;
     }
     runtime = null;
     return false;
 }
 public static void SetGlimpseRuntime(this NancyContext context, IGlimpseRuntime runtime)
 {
     context.Items[RuntimeKey] = runtime;
 }