The module handler service. Type:

static public Timer::stop($name) Stops the timer

public static Unicode::substr($text, $start, $length = NULL)

The renderer. Type:

ThemeRegistry::__construct($cid, CacheBackendInterface $cache, LockBackendInterface

public static Unicode::caseFlip($matches) Flip

public Token::scan($text) Builds a list of all

hook_tokens($type, $tokens, array $data, array $options, \Drupal\Core\Render\BubbleableMetadata $bubbleable_metadata) Provide

Provides helpers for dealing with variables. Hierarchy class \Drupal\Component\Utility\

public Random::object($size = 4) Generates