Attach (recommended) or Link to PDF file here:
https://web.archive.org/web/20210607145115/https://www.hsbc.fr/content/dam/hsbc/fr/docs/pib/Contestation-Transaction-Carte-Bancaire.pdf
(in the test corpus)

What is the expected behavior? (add screenshot)
<img width="175" alt="image" src="https://user-images.githubusercontent.com/942640/121593583-f8e4a480-c9f0-11eb-8901-2b3b63bb34c0.png">

What went wrong? (add screenshot)
<img width="124" alt="image" src="https://user-images.githubusercontent.com/942640/121593765-1a459080-c9f1-11eb-8695-461ef4e65c3d.png">

constructor(attributes) {
    super(TEMPLATE_NS_ID, "encryption",  true);
    this.id = attributes.id || "";
    this.type = getStringOption(attributes.type, ["optional", "required"]);
    this.use = attributes.use || "";
    this.usehref = attributes.usehref || "";
    this.certificate = new XFAObjectArray();
  }
}
class EncryptionMethod extends OptionObject {
  constructor(attributes) {
    super(TEMPLATE_NS_ID, "encryptionMethod", [
      "",
      "AES256-CBC",
      "TRIPLEDES-CBC",
      "AES128-CBC",
      "AES192-CBC",
    ]);
    this.id = attributes.id || "";
    this.use = attributes.use || "";
    this.usehref = attributes.usehref || "";
  }
}
class EncryptionMethods extends XFAObject {