code: public QuestionSet createQuestionSet(long timeLimit) {
      Map<String, String> queryOptions = new HashMap<String, String>();
      queryOptions.put("person_id", getId());
      queryOptions.put("time_limit", String.valueOf(timeLimit));
  
      QuestionSet questionSet = restAdapter.createQuestionSet(queryOptions);
      questionSet.setAdapter(restAdapter);
      return questionSet;
    }
docs: Creates a question set with a set time limit in seconds.
  
  @param timeLimit  the time limit
  @return the new question set