public static IFixture RegisterAsync <T>(this IFixture fixture) where T : IAsyncLifetime
        {
            var instance = fixture.Create <T>();

            AsyncContext.Add(instance);
            return(fixture);
        }
 public static IFixture RegisterAsync <T>(this IFixture fixture, T instance) where T : IAsyncLifetime
 {
     AsyncContext.Add(instance);
     fixture.Inject(instance);
     return(fixture);
 }