code: @XmlElementDecl(namespace = "http://schema.intuit.com/finance/v3", name = "Attachable", substitutionHeadNamespace = "http://schema.intuit.com/finance/v3", substitutionHeadName = "IntuitObject")
      public JAXBElement<Attachable> createAttachable(Attachable value) {
          return new JAXBElement<Attachable>(_Attachable_QNAME, Attachable.class, null, value);
      }
docs: Create an instance of {@link JAXBElement }{@code <}{@link Attachable }{@code >}}