public static void ExpireTokenForKey(string key)
 {
     if (!(key is null))
     {
         CacheCancellableTokensRegistry.TryCancelToken(GenerateRegionTokenKey(key));
     }
 }
 public static void ExpireRegion()
 {
     CacheCancellableTokensRegistry.TryCancelToken(GenerateRegionTokenKey());
 }