internal static Task <TOutput> SelectMany <T, TResult, TOutput>
(
this Task <T> source,
Func <T, Task <TResult> > func,
Func <T, TResult, TOutput> projection
) => source.Bind(func)
.Map(result => projection(source.Result, result));
internal static Task <TResult> SelectMany <T, TResult>
(
this Task <T> source,
Func <T, Task <TResult> > func
) => source.Bind(func);
