startprintjson method

Implementation

@override
Future<TransactionMonitor> startprintjson(
  List<Map<String, Object>> template,
) async {
  Map<String, String> args = {"textprint": jsonEncode(template)};
  var result = await methodChannel.invokeMethod("startprintjson", args);
  return transactionMonitorFromJson(jsonEncode(result));
}