fromJson static method
Implementation
@visibleForTesting
static DetectFacesRequest? fromJson(jsonObject) {
  if (jsonObject == null) return null;
  var result = DetectFacesRequest._privateConstructor();
  result._tag = jsonObject["tag"];
  result._scenario = DetectFacesScenario.getByValue(jsonObject["scenario"]);
  result._image = _bytesFromBase64(jsonObject["image"])!;
  result._configuration =
      DetectFacesConfig.fromJson(jsonObject["configuration"]);
  return result;
}