docs: def predict(self, sample, pstates):
          """
          Predict the class label of X
          """
          scores = {}
          for label, pohmm in self.pohmms.items():
              scores[label] = pohmm.score(sample, pstates)
          max_score_label = max(scores.items(), key=itemgetter(1))[0]
          return max_score_label, scores