Are session.commit() and message.acknowledge() analogous ?

I'm migrating from CLIENT_ACKNOWLEDGE to SESSION_TRANSACTED because I need
to send maybe a dozen new messages and then acknowledge the current message
all at once.

So it seems like:

message.acknowledge()

and

session.commit()

are analogous…

.. IE I have to ALWAYS call session.commit() or the last consumed message
won't be acknowledged.

Is this correct?

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