code: def __enter__(self):
      self.capfd.readouterr()
      return self
  
imports: import pytest
  import textwrap
  import difflib
  import re
  import sys
  import contextlib
  import platform
  import gc
label_desc: Use image node_id 2 for calling the Capture obj's underlying member method code with example usage: obj.__enter__() and returns: self