{{
  forms.panel_fields(
    'Twitter',
    (form.twitter_consumer_key, form.twitter_consumer_secret),
    '''
      Callback URL for <a href="https://dev.twitter.com/apps" target="_blank">Twitter application</a>:
      <em>%s</em>
    ''' % url_for('twitter_authorized', _external=True)
  )
}}