Added a little sleep in doc example.
So consecutive datetime values are more certainly different (was very occasionally failing due to the values being equal).
@@ -2120,6 +2120,8 @@ an exception to be raised.
assert order.pickedup_at is None
# Pick up the order.
+ from time import sleep
+ sleep(0.001)
order.pickup(datetime.now())
assert order.confirmed_at is not None
assert order.pickedup_at is not None
