static void ConfigureHubConnection(
                IHubConnectionBuilder hubConnectionBuilder,
                IServiceProvider serviceProvider)
            {
                var jsRuntime         = serviceProvider.GetRequiredService <IJSRuntime>();
                var navigationManager = serviceProvider.GetRequiredService <NavigationManager>();

                hubConnectionBuilder.WithUrlBlazor(new Uri(DefaultHubUrl, UriKind.Relative), jsRuntime, navigationManager);
            }