@Nullable
            @Override
            public Set<Class<?>> getBeforeDependents() {
                return null;
            }
ContentFetcher
Common logic for setting options for HTML -> Markdown converter and link resolving.
Override {@link getMarkdownContent} to return a set of key/value pairs, where key gives a markdown file name, and value is markdown content.
integration/schema-language-server/language-server/src/main/java/ai/vespa/schemals/documentation/ContentFetcher.java