code: def getzoneinfofile_stream():
      try:
          return BytesIO(get_data(__name__, ZONEFILENAME))
      except IOError as e:  # TODO  switch to FileNotFoundError?
          warnings.warn(
              "I/O error({0}): {1}".format(e.errno, e.strerror)
          )
          return None
  
file_path: catboost/contrib/python/python-dateutil/py2/dateutil/zoneinfo/__init__.py
imports: import warnings
  import json
  from tarfile import TarFile
  from pkgutil import get_data
  from io import BytesIO
  from dateutil.tz import tzfile
label_desc: Use image node_id 1 for calling a global function with example usage: getzoneinfofile_stream() and returns: BytesIO, None