Pulsar Async Send Mode - Packet Order Guarantees?

[Adam Brenner via users]

Hello,

I have a few questions regarding Pulsar Async mode and what, if any, 
guarantees are made with respect to packet ordering:

1) Does Pulsar offer any guarantee packet ordering in Async send mode? 
Let us assume best case with single producer and exclusive access mode.

2) Does the client library do any coordination with Pulsar Broker to 
guarantee packet ordering in async send mode?

3) Would using batch mode with async send mode help in any way to 
guaranteed packet ordering?

Thanks!
-Adam