public static IAsyncEnumerable <IList <TSource> > Buffer <TSource>(this IAsyncEnumerable <TSource> source, int count)
{
if (source == null)
{
throw new ArgumentNullException(nameof(source));
}
if (count <= 0)
{
throw new ArgumentOutOfRangeException(nameof(count));
}
return(source.Buffer_(count, count));
}