For new projects with Kotlin support, the project only contains MainActivity.kt and not Java, and as for now, docs doesn't support it.

I suggest adding the following to GettingStarted.

Kotlin's support.
2. Add an Application.kt class to your app in the same director

Google suggests enabling gzip compression before transferring files over the network:

In order to receive a gzip-encoded response you must do two things: Set an Accept-Encoding header, and modify your user agent to contain the string gzip. Here is an example of properly formed HTTP headers for enabling gzip compression:

Acc