code: def length(self):
      return self.end - self.start
  
file_path: fairseq/examples/mms/data_prep/align_utils.py
imports: import re
  import os
  import torch
  import tempfile
  import math
  from dataclasses import dataclass
  from torchaudio.models import wav2vec2_model
label_desc: Use image node_id 2 for calling the Segment obj's underlying member method code with example usage: obj.length() and returns: unknown