private static void writeGradleProperties(IonWriter writer,
                                            WriteContext context,
                                            List<? extends GradleProperty> properties) throws IOException {
    writer.setFieldName("properties");
    writer.stepIn(IonType.LIST);
    for (GradleProperty property : properties) {
      write(writer, context, property);
    }
    writer.stepOut();
  }
private static void writeGradleProperties(IonWriter writer,
                                            WriteContext context,
                                            List<? extends GradleProperty> properties)