code: def get(self):
      
      template_values = {
          'back_url': '/',
          'back_msg': 'View Accounts',
          'logout_url': users.create_logout_url('/'),
          'user_nickname': users.get_current_user().nickname()
      }
      try:
        try:
          app_user = InitUser()
  
          template_values['email'] = app_user.email if app_user.email else ''
          template_values['client_id'] = (app_user.client_id if app_user.client_id
                                          else '')
          template_values['client_secret'] = (app_user.client_secret if
                                              app_user.client_secret else '')
          template_values['refresh_token'] = (app_user.refresh_token if
                                              app_user.refresh_token else '')
          template_values['adwords_manager_cid'] = (
              app_user.adwords_manager_cid if app_user.adwords_manager_cid else ''
          )
          template_values['dev_token'] = (app_user.developer_token if
                                          app_user.developer_token else '')
        except Exception, e:
          template_values['error'] = str(e)
      finally:
        # Use template to write output to the page.
        path = os.path.join(os.path.dirname(__file__),
                            '../templates/show_credentials.html')
        self.response.out.write(template.render(path, template_values))
docs: Handle get request.