public TypeConverterWithTwoGenericArgs(ConverterManagerTests config)
            {
                // We know this is only used by a single test invoking with this combination of params.
                Assert.Equal(typeof(String), typeof(TInput));
                Assert.Equal(typeof(int), typeof(TOutput));

                config._counter++;
            }
 public TypeConverterWithConcreteTypes(ConverterManagerTests config)
 {
     config._counter++;
 }