System.Linq.CachedReflectionInfo.ThenBy_TSource_TKey_2 C# (CSharp) Метод

        public static MethodInfo ThenBy_TSource_TKey_2(Type TSource, Type TKey) =>
             (s_ThenBy_TSource_TKey_2 ??
             (s_ThenBy_TSource_TKey_2 = new Func<IOrderedQueryable<object>, Expression<Func<object, object>>, IOrderedQueryable<object>>(Queryable.ThenBy).GetMethodInfo().GetGenericMethodDefinition()))
              .MakeGenericMethod(TSource, TKey);