invokeHandoverMap method
Implementation
JSPromise<JSAny?> invokeHandoverMap(String serviceName, String method, JSUint8Array data) {
final response = _interactionEmbeddingController.invokeHandoverInternal(serviceName,
arguments: {'request': data, 'method': method, 'serviceName': serviceName});
// convert to JS
return response.then((resp) => (resp as Uint8List).toJS).toJS;
}