code: def __enter__(self):
      # See redefined _find_c_source() description for more info
      if self.build_root:
          self.file = open(
              os.path.join(self.build_root, self.filename), self.mode
          )
          return self.file
      elif standalone():
          import library.python.resource
          from six import StringIO
  
          content = library.python.resource.resfs_read(
              self.filename, builtin=True
          )
          assert content, (self.filename, os.environ.items())
          return StringIO(content.decode())
      else:
          self.file = open(self.filename, self.mode)
          return self.file
  
imports: from __future__ import absolute_import
  import re
  import os.path
  import sys
  from collections import defaultdict
  from coverage.plugin import CoveragePlugin, FileTracer, FileReporter
  from coverage.files import canonical_filename
  from .Utils import find_root_package_dir, is_package_dir, open_source_file
  from .None import __version__
label_desc: Use image node_id 2 for calling the OpenFile obj's underlying member method code with example usage: obj.__enter__() and returns: self, StringIO, self