initialize method
Requests the EMDK Manager from the OS. Returns the immediate EMDKStatusCode; the EMDK becomes usable once onOpened fires.
Implementation
Future<EMDKStatusCode?> initialize() => guardZebra(() async {
final result = await _api.initialize();
return EMDKStatusCode.values
.firstWhere((e) => e.value == result, orElse: () => EMDKStatusCode.unknown);
});