code: @Override
      public MarkLogicUpdateQuery prepareUpdate(String queryString,String baseURI) throws RepositoryException, MalformedQueryException {
          return prepareUpdate(QueryLanguage.SPARQL, queryString, baseURI);
      }
docs: overload for prepareUpdate
  
  @param queryString
  @param baseURI
  @return MarkLogicUpdateQuery
  @throws RepositoryException
  @throws MalformedQueryException