private static void writeClasspath(IonWriter writer, Set<? extends ClasspathEntryModel> classpath) throws IOException {
    writer.setFieldName("classpath");
    writer.stepIn(IonType.LIST);
    for (ClasspathEntryModel entry : classpath) {
      writeClasspathEntry(writer, entry);
    }
    writer.stepOut();
  }
private static void writeClasspath(IonWriter writer, Set<? extends ClasspathEntryModel> classpath)