docs: function(input) {
  		gui.Class.ancestorsAndSelf(input.type, function(Type) {
  			var list = this._trackedtypes[Type.$classid];
  			if (list) {
  				list.forEach(function(checks) {
  					var handler = checks[0];
  					handler.oninput(input);
  				});
  			}
  		}, this);
  	}