logger.ts?11d9:87 [2019-03-29T20:10:36.573Z] @firebase/firestore: Firestore (5.9.1):
The timestampsInSnapshots setting now defaults to true and you no
longer need to explicitly set it. In a future release, the setting
will be removed entirely and so it is recommended that you remove it
from your firestore.settings() call now.