code: def ask_question(self, question_text, question=None):
          
          if question is not None:
              q = question.to_dict()
          else:
              q = WatsonQuestion(question_text).to_dict()
          r = requests.post(self.url + '/question', json={'question': q}, headers={
              'Accept': 'application/json',
              'X-SyncTimeout': 30
          }, auth=(self.username, self.password))
          try:
              response_json = r.json()
          except ValueError:
              raise Exception('Failed to parse response JSON')
          return WatsonAnswer(response_json)
docs: Ask Watson a question via the Question and Answer API
  
          :param question_text: question to ask Watson
          :type question_text: str
          :param question: if question_text is not provided, a Question object
                           representing the question to ask Watson
          :type question: WatsonQuestion
          :return: Answer