code: def extract(self, extractdir=None, verbose=False):
          
          if extractdir is None:
              filebase, ext = os.path.splitext(self.path)
              if ext in ('.gz', '.bz2', '.xz'):
                  filebase, _ext = os.path.splitext(filebase)
              extractdir = os.path.basename(filebase)
              if os.path.exists(extractdir):
                  tempdir = tempfile.mkdtemp(prefix='vimball-', dir=os.getcwd())
                  extractdir = os.path.join(tempdir.split('/')[-1], extractdir)
  
          self.fd.seek(0)
          for filename, lines, offset in self.files:
              filepath = os.path.join(extractdir, filename)
              try:
                  directory = os.path.dirname(filepath)
                  mkdir_p(directory)
              except OSError as e:
                  raise ArchiveError(f"failed creating directory {directory!r}: {e.strerror}")
              with open(filepath, 'w') as f:
                  if verbose:
                      print(filepath)
                  self.fd.seek(offset)
                  for i in range(lines):
                      f.write(self.readline())
docs: Extract archive files to a directory.