// Load data first
        protwordsFile.reload(null);

        // Get an existing item
        ProtwordsItem item = protwordsFile.get(1).get();

        // Delete the item
        protwordsFile.delete(item);

        // Verify deletion
        protwordsFile.reload(null);
        PagingList<ProtwordsItem> list = protwordsFile.selectList(0, 100);
        for (ProtwordsItem listItem : list) {

     * @return the protected words file if found
     */
    public OptionalEntity<ProtwordsFile> getProtwordsFile(final String dictId) {
        return dictionaryManager.getDictionaryFile(dictId)
                .filter(ProtwordsFile.class::isInstance)
                .map(file -> OptionalEntity.of((ProtwordsFile) file))
                .orElse(OptionalEntity.empty());
    }

    /**

        form.dictId = dictId;
        validateApi(form, messages -> {});
        final ProtwordsFile file = protwordsService.getProtwordsFile(form.dictId).orElseGet(() -> {
            throwValidationErrorApi(messages -> messages.addErrorsFailedToUploadProtwordsFile(GLOBAL));
            return null;
        });
        try (InputStream inputStream = form.protwordsFile.getInputStream()) {
            file.update(inputStream);

        verifyToken(() -> uploadpage(form.dictId));
        return protwordsService.getProtwordsFile(form.dictId).map(file -> {
            try (InputStream inputStream = form.protwordsFile.getInputStream()) {
                file.update(inputStream);
            } catch (final IOException e) {
                logger.warn("Failed to process a request.", e);