class_docstr: A manifest file wrapper used to read and write tft cache manifest files.
class_docstr_tok: ["A","manifest","file","wrapper","used","to","read","and","write","tft","cache","manifest","files","."]
code: def __enter__(self):
      self._open()
      return self
  
imports: import os
  import pickle
  import re
  import sys
  from typing import Iterable, Mapping, List, Optional, Union, Tuple
  import apache_beam
  import tensorflow
  from tfx_bsl.types import tfx_namedtuple
label_desc: Use image node_id 5 for calling the _ManifestFile obj's underlying member method code with example usage: obj.__enter__() and returns: self