setup method
Implementation
@override
Future setup(
void Function() onSetupComplete, void Function() onSetupFailed) async {
try {
List<dynamic> data = await loadFromNDJson(filePath);
_eventsQueue = Queue.from(data);
_initialTimestamp = _eventsQueue.first['timestamp'];
onSetupComplete();
} catch (e) {
onSetupFailed();
}
}