C# (CSharp) IEitherReferenceType примеры использования

Пример #1

 public static IEitherReferenceType <TLeft, TRightResult> MapRight <TLeft, TRight, TRightResult>(this IEitherReferenceType <TLeft, TRight> source, Func <TRight, TRightResult> selector)
 {
     return(source.Map(l => l, selector));
 }

Пример #2

 public static IEitherReferenceType <TLeftResult, TRight> MapLeft <TLeft, TRight, TLeftResult>(this IEitherReferenceType <TLeft, TRight> source, Func <TLeft, TLeftResult> selector)
 {
     return(source.Map(selector, r => r));
 }