Save Preferences Locally with DataStore

[yasunovv]

URL of codelab:
https://developer.android.com/codelabs/basic-android-kotlin-compose-datastore?continue=https%3A%2F%2Fdeveloper.android.com%2Fcourses%2Fpathways%2Fandroid-basics-compose-unit-6-pathway-3%23codelab-https%3A%2F%2Fdeveloper.android.com%2Fcodelabs%2Fbasic-android-kotlin-compose-datastore#3

Specify the language of the codelab if it is not English:

In which task and step of the codelab can this issue be found?
Implement the user preferences repository

Describe the problem
In exception code there is a line: emit(emptyPreference()), but this code isn't correct, because fun must return Flow, therefore it should be emit(true)