Enable/revert a feature in a Drupal update hook #drupal7

example.install.php

/**
 * EXAMPLE FEATURE UPDATE
 * Enable and revert the my_new_feature_name feature.
 */
function example_update_7001() {
  // An array of new or changed features; the array keys are feature names,
  // values are an array of exportable types as seen in a feature's .info file:
  //   features[field][] = node-page-body
  $features = array(
    'my_new_feature_name' => array('field', 'variable'),
    'my_other_feature' => array('taxonomy'),
  );

  // Enable the modules by name.
  module_enable(array_keys($features));

  // Revert the features (if the feature has been changed)
  features_revert($features);

  return t('Enabled the my_new_feature_name and my_other_feature features.');
}