internal void RemoveTokenResolver(TokenResolverHandler tokenResolver) => _tokenResolvers -= tokenResolver;
internal bool HasTokenResolver(TokenResolverHandler tokenResolver) => _tokenResolvers != null && _tokenResolvers.GetInvocationList().Any(del => del.Method == tokenResolver.Method);
internal void AddTokenResolver(TokenResolverHandler tokenResolver) => _tokenResolvers += tokenResolver;