code: def get_clean_sequence(
      self,
      tokenizer,
      with_prefix_space=False,
      max_length=20,
      min_length=5,
  ) -> Tuple[str, list]:
      toks = [
          (i, tokenizer.decode([i], clean_up_tokenization_spaces=False))
          for i in range(len(tokenizer))
      ]
      toks = list(
          filter(
              lambda t: [t[0]]
              == tokenizer.encode(t[1], do_phonemize=False),
              toks,
          )
      )
      if max_length is not None and len(toks) > max_length:
          toks = toks[:max_length]
      if (
          min_length is not None
          and len(toks) < min_length
          and len(toks) > 0
      ):
          while len(toks) < min_length:
              toks = toks + toks
      # toks_str = [t[1] for t in toks]
      toks_ids = [t[0] for t in toks]
  
      # Ensure consistency
      output_txt = tokenizer.decode(
          toks_ids, clean_up_tokenization_spaces=False
      )
      if " " not in output_txt and len(toks_ids) > 1:
          output_txt = (
              tokenizer.decode(
                  [toks_ids[0]], clean_up_tokenization_spaces=False
              )
              + " "
              + tokenizer.decode(
                  toks_ids[1:], clean_up_tokenization_spaces=False
              )
          )
      if with_prefix_space:
          output_txt = " " + output_txt
      output_ids = tokenizer.encode(
          output_txt, add_special_tokens=False
      )
      return output_txt, output_ids
  
imports: import json
  import os
  import unittest
  from typing import Tuple
  from transformers import Wav2Vec2PhonemeCTCTokenizer
  from transformers.models.wav2vec2.tokenization_wav2vec2 import VOCAB_FILES_NAMES
  from transformers.models.wav2vec2_phoneme.tokenization_wav2vec2_phoneme import Wav2Vec2PhonemeCTCTokenizerOutput
  from transformers.testing_utils import require_phonemizer
  from ...test_tokenization_common import TokenizerTesterMixin
label_desc: Use image node_id 2 for calling the Wav2Vec2PhonemeCTCTokenizerTest obj's underlying member method code with example usage: obj.get_clean_sequence(tokenizer, with_prefix_space, max_length, min_length) and returns: output_txt,  output_ids