code: def ctc_beam_search_decoder_batch(probs_seq,
                                    seq_lengths,
                                    alphabet,
                                    beam_size,
                                    num_processes,
                                    cutoff_prob=1.0,
                                    cutoff_top_n=40,
                                    scorer=None):
      
      batch_beam_results = swigwrapper.ctc_beam_search_decoder_batch(
          probs_seq, seq_lengths, alphabet.config_file(), beam_size, num_processes,
          cutoff_prob, cutoff_top_n, scorer)
      batch_beam_results = [
          [(res.probability, alphabet.decode(res.tokens)) for res in beam_results]
          for beam_results in batch_beam_results
      ]
      return batch_beam_results
docs: Wrapper for the batched CTC beam search decoder.
  
      :param probs_seq: 3-D list with each element as an instance of 2-D list
                        of probabilities used by ctc_beam_search_decoder().
      :type probs_seq: 3-D list
      :param alphabet: alphabet list.
      :alphabet: Alphabet
      :param beam_size: Width for beam search.
      :type beam_size: int
      :param num_processes: Number of parallel processes.
      :type num_processes: int
      :param cutoff_prob: Cutoff probability in alphabet pruning,
                          default 1.0, no pruning.
      :type cutoff_prob: float
      :param cutoff_top_n: Cutoff number in pruning, only top cutoff_top_n
                           characters with highest probs in alphabet will be
                           used in beam search, default 40.
      :type cutoff_top_n: int
      :param num_processes: Number of parallel processes.
      :type num_processes: int
      :param scorer: External scorer for partially decoded sentence, e.g. word
                     count or language model.
      :type scorer: Scorer
      :return: List of tuples of log probability and sentence as decoding
               results, in descending order of the probability.
      :rtype: list