isFromCache property
Whether the snapshot was created from cached data rather than guaranteed up-to-date server data.
If you called DocumentReferencePlatform.snapshots or QueryPlatform.snapshots with
includeMetadataChanges
parameter set to true
you will receive another
snapshot with isFomCache
equal to false
once the client has received
up-to-date data from the backend.
Implementation
final bool isFromCache;