System.Linq.CachedReflectionInfo.SingleOrDefault_TSource_1 C# (CSharp) Метод

        public static MethodInfo SingleOrDefault_TSource_1(Type TSource) =>
             (s_SingleOrDefault_TSource_1 ??
             (s_SingleOrDefault_TSource_1 = new Func<IQueryable<object>, object>(Queryable.SingleOrDefault).GetMethodInfo().GetGenericMethodDefinition()))
              .MakeGenericMethod(TSource);