/**
  * Get fully configured and authenticated Twitter API client.
  * @return TwitterApiClient
  */
 public static function api_client($id = null)
 {
     gltw_log();
     if (!isset($clients[$id])) {
         $clients[$id] = TwitterApiClient::create_instance(is_null($id));
     }
     return $clients[$id];
 }
/**
 * Get fully configured and authenticated Twitter API client.
 * @return TwitterApiClient
 */
function twitter_api_client($id = null)
{
    static $clients = array();
    if (!isset($clients[$id])) {
        twitter_api_include('core');
        $clients[$id] = TwitterApiClient::create_instance(is_null($id));
    }
    return $clients[$id];
}