* return null; }
         */
    }

    /**
     * Gets the reading from the attribute.
     * @param stream The token stream.
     * @return The reading from the attribute.
     */
    protected String getReadingFromAttribute(final TokenStream stream) {
        return null;
        /*

              // Ignore this attribute, it isn't recognizable as a date.
            }
          }
          attributeName.equals("max-age", ignoreCase = true) -> {
            try {
              deltaSeconds = parseMaxAge(attributeValue)
              persistent = true
            } catch (_: NumberFormatException) {
              // Ignore this attribute, it isn't recognizable as a max age.
            }

     */
    // PUT /api/admin/user/setting
    @Execute
    public JsonResponse<ApiResult> put$setting(final EditBody body) {
        validateApi(body, messages -> {});
        validateAttributes(body.attributes, this::throwValidationErrorApi);
        body.crudMode = CrudMode.EDIT;
        final User entity = getUser(body).orElseGet(() -> {
            throwValidationErrorApi(messages -> {

        } catch (final UnsupportedEncodingException ex) {
            throw new IORuntimeException(ex);
        }
    }

    /**
     * Encodes the value of an attribute.
     *
     * @param s
     *            The attribute value.
     * @return The encoded attribute value.
     */
    public static String encodeAttrQuot(final String s) {
        if (s == null) {
            return null;
        }

                        final Node node = nodeList.item(i);
                        final NamedNodeMap attributes = node.getAttributes();
                        if (attributes != null) {
                            final Node classAttr = attributes.getNamedItem("class");
                            if (classAttr != null) {
                                final String value = classAttr.getNodeValue();

        SmbFile file = new SmbFile(baseUrl + "shared/attributes.txt", context);
        file.createNewFile();

        // Test basic attributes
        assertTrue(file.canRead(), "File should be readable");
        assertTrue(file.canWrite(), "File should be writable");

        int attributes = file.getAttributes();
        assertTrue(attributes >= 0, "Attributes should be valid");
    }

    @Test

     */
    @Execute
    public JsonResponse<ApiResult> post$setting(final CreateBody body) {
        validateApi(body, messages -> {});
        validateAttributes(body.attributes, this::throwValidationErrorApi);
        body.crudMode = CrudMode.CREATE;
        final Group entity = getGroup(body).orElseGet(() -> {
            throwValidationErrorApi(messages -> {

     * operation to return.
     */
    int FILE_NOTIFY_CHANGE_CREATION = 0x00000040;

    /**
     * Any change to the extended attributes (EA) of a file in the watched directory or subtree causes a change notification wait operation to return.
     */
    int FILE_NOTIFY_CHANGE_EA = 0x00000080;

    /**

And these models are all sharing a lot of the data and duplicating attribute names and types.

We could do better.

We can declare a `UserBase` model that serves as a base for our other models. And then we can make subclasses of that model that inherit its attributes (type declarations, validation, etc).

All the data conversion, validation, documentation, etc. will still work as normally.

    
    // READ_CACHING for directories means:
    // - Can cache directory enumeration results
    // - Can cache file existence queries
    // - Can cache basic file attributes
    
    // HANDLE_CACHING for directories means:
    // - Can keep directory handle open
    // - Can cache subdirectory handles
    
    // WRITE_CACHING for directories means: