code: def __init__(self, filename):
      super().__init__()
      self.filename = filename
  
imports: from collections import deque
  import logging
  import os
  import re
  from stanza.models.constituency.parse_tree import Tree
  from stanza.utils.get_tqdm import get_tqdm
label_desc: Use image node_id 1 to create a new FileTokenIterator object from inherited base classes: TokenIterator with example: obj = FileTokenIterator(filename)