/**
     * Get the value for the key 'crawler.document.mimetype.extension.overrides'. <br>
     * The value is, e.g.  <br>
     * comment: Extension-to-MIME-type override mappings for MIME type detection (one per line: .ext=mime/type).
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getCrawlerDocumentMimetypeExtensionOverrides();

    /**