code: public SearchQuery highlight(HighlightStyle style, String... fields) {
          this.highlightStyle = style;
          if (fields != null && fields.length > 0) {
              highlightFields = fields;
          }
          return this;
      }
docs: Configures the highlighting of matches in the response.
  
  This drives the inclusion of the {@link SearchQueryRow#fragments() fragments} in each {@link SearchQueryRow hit}.
  
  Note that to be highlighted, the fields must be stored in the FTS index.
  
  @param style the {@link HighlightStyle} to apply.
  @param fields the optional fields on which to highlight. If none, all fields where there is a match are highlighted.
  @return this SearchQuery for chaining.