code: private function getDefaultServices()
      {
          return array(
              'abstracter' => function (Debug $debug) {
                  return new Debug\Abstracter($debug, $debug->config->getCfgLazy('abstracter'));
              },
              'config' => function (Debug $debug) {
                  return new Debug\Config($debug, $debug->cfg);    // cfg is passed by reference
              },
              'errorEmailer' => function (Debug $debug) {
                  return new ErrorEmailer($debug->config->getCfgLazy('errorEmailer'));
              },
              'errorHandler' => function (Debug $debug) {
                  if (ErrorHandler::getInstance()) {
                      return ErrorHandler::getInstance();
                  } else {
                      $errorHandler = new ErrorHandler($debug->eventManager);
                      /*
                          log E_USER_ERROR to system_log without halting script
                      */
                      $errorHandler->setCfg('onEUserError', 'log');
                      return $errorHandler;
                  }
              },
              'eventManager' => function () {
                  return new EventManager();
              },
              'internal' => function (Debug $debug) {
                  return new Debug\Internal($debug);
              },
              'logger' => function (Debug $debug) {
                  return new Debug\Logger($debug);
              },
              'methodClear' => function (Debug $debug) {
                  return new Debug\MethodClear($debug, $debug->data);
              },
              'methodTable' => function () {
                  return new Debug\MethodTable();
              },
              'output' => function (Debug $debug) {
                  $output = new Debug\Output($debug, $debug->config->getCfgLazy('output'));
                  $debug->eventManager->addSubscriberInterface($output);
                  return $output;
              },
              'utf8' => function () {
                  return new Debug\Utf8();
              },
              'utilities' => function () {
                  return new Debug\Utilities();
              },
          );
      }
docs: Set "container" services
  
  @return array