code: def rerecord(ctx, rest):
      
      run('tox -e py27 -- --cassette-mode all --record --credentials {0} -s'
          .format(rest), pty=True)
      run('tox -e py27 -- --resave --scrub --credentials test_credentials {0} -s'
          .format(rest), pty=True)
docs: Rerecord tests.