code: def open(self, path: str, mode: str = "r", buffer_size: int = 8192):
      return self._open(path, mode, buffer_size, use_codec=False)
  
imports: import io
  import json
  import time
  from typing import Dict, List, Union, Any
  import dateutil.parser
  from hailtop.fs.fs import FS
  from hailtop.fs.stat_result import FileType, FileListEntry, FileStatus
label_desc: Use image node_id 2 for calling the HadoopFS obj's underlying member method code with example usage: obj.open(path, mode, buffer_size) and returns: self