This content was released on Oct 6 2020. The official support period is 6-months from this date.
GRDB, which the app uses for data storage, relies on the CombineExpectations library. SettingsManagerTestCase makes use of its Recorders as well.
This is a companion discussion topic for the original entry at https://www.kodeco.com/10877489-combine-in-the-raywenderlich-com-app/lessons/2