code: def classify(self, tweets):
          
          if type(tweets) == str:
              return self.classifier.classify(tweets)
  
          return list(map(lambda tweet: self.classifier.classify(tweet), tweets))
docs: Classify tweet or tweets
          :param tweets: String or array of strings to classify.
          :return: String or array of strings depicting sentiment. Sentiment can be POSITIVE, NEGATIVE or NEUTRAL.