nhibernate async/await pattern

[stcom77]

Hi. I saw the examples how to use nHibernate 5 async features, something like this.

async Task<Item> GetItems(){
  return await _session.ListAsync();
}

Why should to use async/await instead of just?

Task<Item> GetItems(){
  return _session.ListAsync();
}

It lets us avoid the async/await overhead. Or maybe are any other reasons to do like in the first example.
I have read the documentation but didn't find an answer. Maybe are any limitations and the second example will not work?

[hazzik]

It does not matter as long as you do not forget to await the final call like this:

var items = await GetItems();

[cd21h]

@stcom77
I really like explanation given here https://www.reddit.com/r/csharp/comments/9igzbf/whats_the_difference_between_awaiting_a_task_vs/

If you want more technical details check https://blog.stephencleary.com/2016/12/eliding-async-await.html