fromTask<L, R>  function 
 
Transforms a Task into a TaskEither, wrapping the result in an Right.
expect(
  await fromTask(T.value('hello'))(),
  E.right('hello'),
);
Implementation
TaskEither<L, R> fromTask<L, R>(Task<R> fa) =>
    TaskEither(Task(() => fa().flatMap(either.right)));