code: function(class_names, cancel_sync) {
  
  		if (Lava.schema.DEBUG && typeof(class_names) == 'string') Lava.t();
  
  		for (var i = 0, count = class_names.length; i < count; i++) {
  
  			this.addClass(class_names[i], cancel_sync);
  
  		}
  
  	}
docs: Add a list of static classes to the instance
  @param {Array.<string>} class_names
  @param {boolean} cancel_sync If <kw>true</kw> - do not add that classes to DOM element, just to local `_static_classes` array