extractTiming method
Implementation
void extractTiming(Map<String, dynamic> document) {
//document ??= <String, Object>{};
var opTime = document[keyOperationTime];
if (opTime is Timestamp) {
operationTime =
DateTime.fromMillisecondsSinceEpoch(opTime.seconds * 1000);
} else if (opTime is DateTime) {
operationTime = opTime;
}
$clusterTime = $ClusterTime(document);
}