code: public StructuredQueryDefinition value(TextIndex index, String... values) {
      return new ValueQuery(index, null, null, null, values);
    }
docs: Matches an element, attribute, JSON property, or field
  that has a value with the same string value as at least one
  of the criteria values.
  @param index    the value container
  @param values    the possible values to match
  @return    the StructuredQueryDefinition for the value query