StepArgumentTransformation with generics

gistfile1.cs

        [StepArgumentTransformation]
        public T CreateUser<T>(Table table) where T : new()
        {
            // magic happens here stuff 
            // or this line
            // any case a new T gets created
            return table.CreateInstance<T>();
        }


            [Given(@"this is great if it would work")]
            public void GivenThisIsGreatIfItWouldWork(MarcusUser  user)
            {
                Assert.IsNotNull(user);
            }

This throws for me with "Method T CreateUserT is a generic method definition"