System.Linq.CachedReflectionInfo.GroupBy_TSource_TKey_TResult_3 C# (CSharp) Method

        public static MethodInfo GroupBy_TSource_TKey_TResult_3(Type TSource, Type TKey, Type TResult) =>
             (s_GroupBy_TSource_TKey_TResult_3 ??
             (s_GroupBy_TSource_TKey_TResult_3 = new Func<IQueryable<object>, Expression<Func<object, object>>, Expression<Func<object, IEnumerable<object>, object>>, IQueryable<object>>(Queryable.GroupBy).GetMethodInfo().GetGenericMethodDefinition()))
              .MakeGenericMethod(TSource, TKey, TResult);