code: public static function addNamespaces($names)
  	{
  		@trigger_error('Using ClassLoader::addNamespaces() has been deprecated and will no longer work in Contao 5.0.', E_USER_DEPRECATED);
  
  		foreach ($names as $name)
  		{
  			self::addNamespace($name);
  		}
  	}
docs: Add multiple new namespaces
  
  @param array $names An array of namespace names
  
  @deprecated Deprecated since Contao 4.2, to be removed in Contao 5.