/**
 * Implements hook_field_extra_fields().
 */
function {{ machine_name }}_field_extra_fields() {
  $extra['node']['poll'] = array(
    'form' => array(
      'choice_wrapper' => array(
        'label' => t('Poll choices'),
        'description' => t('Poll choices'),
        'weight' => -4,
      ),
      'settings' => array(
        'label' => t('Poll settings'),
        'description' => t('Poll module settings'),
        'weight' => -3,
      ),
    ),
    'display' => array(
      'poll_view_voting' => array(
        'label' => t('Poll vote'),
        'description' => t('Poll vote'),
        'weight' => 0,
      ),
      'poll_view_results' => array(
        'label' => t('Poll results'),
        'description' => t('Poll results'),
        'weight' => 0,
      ),
    )
  );

  return $extra;
}