System.Linq.CachedReflectionInfo.Concat_TSource_2 C# (CSharp) Метод

        public static MethodInfo Concat_TSource_2(Type TSource) =>
             (s_Concat_TSource_2 ??
             (s_Concat_TSource_2 = new Func<IQueryable<object>, IEnumerable<object>, IQueryable<object>>(Queryable.Concat).GetMethodInfo().GetGenericMethodDefinition()))
              .MakeGenericMethod(TSource);