MSK Serverless - Data In and Data out charges.

In the FAQ it could see the below content Q: How does data transfer pricing work? With provisioned clusters, you will pay standard AWS data transfer charges for data transferred in and out of an Amazon MSK cluster. You will not be charged for data transfer within the cluster in a region, including data transfer between brokers and data transfer between brokers and Apache ZooKeeper nodes.

With serverless clusters, you will pay standard AWS data transfer charges for data transferred to or from another region and for data transferred out to the public internet.

In the pricing page, the example is given as below..

Let’s assume you create a MSK Serverless cluster in US East (Ohio) AWS region. The cluster has 5 topics with 20 partitions each. Daily, your producers write on average 100GB of data and your consumers read 200GB of data. You also retain that data for 24 hours to ensure it is available for replay. In the above scenario, you would pay the following for a 31-day month:

Total = per-hour cluster charge + per-hour partition charge + data-in charges + data-out charges + storage charges Total = $558 + $111.6 + $310 + $310 + $10 = $1,299.60

Is the charging for Data-In and Data-out is only when the data is pushed or pulled from other region or if we publish a message to a topic within the region or consume a message within the region... even that is chargeable?