code: def read_slow(self):
      with open(self.file_path, "r", encoding="utf8") as fh:
          while True:
              line = fh.readline()
              if line == -1 or line == "":
                  break
              else:
                  yield line[:-1]
  
imports: import os
  import zstandard
  import json
  import jsonlines
  import io
  import datetime
  import mmap
  import tqdm
  from pathlib import Path
label_desc: Use image node_id 5 for calling the TextReader obj's underlying member method code with example usage: obj.read_slow() without return types