code: def read(self):
      with open(self.file_path, "r", encoding="utf8") as fh:
          with mmap.mmap(
              fh.fileno(), length=0, access=mmap.ACCESS_READ
          ) as mmap_obj:
              for line in iter(mmap_obj.readline, b""):
                  line = line.decode("utf-8")
                  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 4 for calling the TextReader obj's underlying member method code with example usage: obj.read() without return types