public static ReadOnlyListExtensions.DistinctEnumerable <ValueWrapper <TSource>, TSource> Distinct <TSource>(this ImmutableList <TSource> source, IEqualityComparer <TSource>?comparer = default) => ReadOnlyListExtensions.Distinct <ValueWrapper <TSource>, TSource>(new ValueWrapper <TSource>(source), comparer);
public static ReadOnlyListExtensions.DistinctEnumerable <ImmutableArray <TSource>, TSource> Distinct <TSource>(this ImmutableArray <TSource> source, IEqualityComparer <TSource>?comparer = null) => ReadOnlyListExtensions.Distinct <ImmutableArray <TSource>, TSource>(source, comparer);