public async Task <bool> TryBeginSessionAsync(Session session, DateTime leaseEnd, CancellationToken cancellation)
{
if (session == default)
{
throw new ArgumentDefaultException(nameof(session));
}
var newSession = _storedSessionManager.Begin(session, leaseEnd);
var previousSession = await _storage.UpdateSessionAsync(newSession, null, cancellation);
return(previousSession == null);
}
