rumqttc: disconnect with options

[xiaocq2001]

Expected Behavior

It does not appear there is a way to inform the broker that the client wishes to end the session. Usually, as I understand it, this is done by sending a disconnect packet with an expiry interval set to 0, but this is not currently an option on rumqttc’s disconnect.

Current Behavior

There is no way to assign disconnect options.

[swanandx]

Thanks for pointing it out! We should have a method like disconnect_with_properties for disconnect in v5 client ( just like we have for publish/subscribe )