code: def GetTopLevel(self, file_object):
      
      try:
        top_level_object = biplist.readPlist(file_object)
  
      except (biplist.InvalidPlistException,
              biplist.NotBinaryPlistException) as exception:
        raise errors.UnableToParseFile(
            'Unable to parse plist with error: {0!s}'.format(exception))
  
      return top_level_object
docs: Returns the deserialized content of a plist as a dictionary object.
  
      Args:
        file_object (dfvfs.FileIO): a file-like object to parse.
  
      Returns:
        dict[str, object]: contents of the plist.
  
      Raises:
        UnableToParseFile: when the file cannot be parsed.