dictionaryManager.addCreator(this);
    }

    /**
     * Creates a new {@link StopwordsFile} instance.
     *
     * @param id        The unique identifier for the dictionary file.
     * @param path      The file path of the dictionary.
     * @param timestamp The last modified timestamp of the file.
     * @return A new {@link StopwordsFile} associated with the dictionary manager.
     */
    @Override

                                    <label for="stopwordsFile" class="col-sm-3 text-sm-right col-form-label"><la:message
                                            key="labels.dict_stopwords_file"/></label>
                                    <div class="col-sm-9">
                                        <input type="file" id="stopwordsFile" name="stopwordsFile" class="form-control-file"/>
                                    </div>

     */
    public OptionalEntity<StopwordsFile> getStopwordsFile(final String dictId) {
        return dictionaryManager.getDictionaryFile(dictId)
                .filter(StopwordsFile.class::isInstance)
                .map(file -> OptionalEntity.of((StopwordsFile) file))
                .orElse(OptionalEntity.empty());
    }

    /**

        form.dictId = dictId;
        validateApi(form, messages -> {});
        final StopwordsFile file = stopwordsService.getStopwordsFile(form.dictId).orElseGet(() -> {
            throwValidationErrorApi(messages -> messages.addErrorsFailedToUploadStopwordsFile(GLOBAL));
            return null;
        });
        try (InputStream inputStream = form.stopwordsFile.getInputStream()) {
            file.update(inputStream);

    /**
     * The multipart file containing the stopwords to be uploaded.
     * This file should contain a list of words that should be filtered out during indexing.
     */
    @Required
    public MultipartFormFile stopwordsFile;

    /**
     * Default constructor for UploadForm.
     * Creates a new instance with default values.
     */
    public UploadForm() {
        // Default constructor
    }