example-hook-tokens-info-alter.php

<?php
/**
 * Implements hook_token_info_alter().
 */
function cake_token_info_alter(&$data) {
  // Chained tokens for cake.
  $data ['tokens']['cake']['author'] = array(
    'name' => t('The cake author'),
    'description' => t('User author of the cake'),
    'type' => 'user',
  );
  $data ['tokens']['cake']['recipe'] = array(
    'name' => t('The cake recipe'),
    'description' => t('Node recipe of the cake.'),
    'type' => 'node',
  );
}
?>