docs: function(type) {
  			var result = gui.Array.from(this.spirit.element.children);
  			if (type) {
  				result = result.filter(function(elm) {
  					return elm.spirit && elm.spirit instanceof type;
  				}).map(function(elm) {
  					return elm.spirit;
  				});
  			}
  			return result;
  		}