angularjs - How to add all possible attributes (including other directives) in my directive? -

i'm trying create directive so:

mytemplate.html:

<div class="mywidget">     <input type="text" class="someclass blah blah" ng-model="mymodel" ng-change="mychange" /> </div> 

mydirective:

(function () {     'use strict';      angular         .module('myapp.mywidgets.somewidget')         .directive('somewidget', somewidget);      somewidget.$inject = ['$timeout'];      function somewidget($timeout) {          return {             restrict: 'ea',             templateurl: 'mytemplate.html',             link: link,             require: 'ngmodel',             scope: {                 mymodel: '=ngmodel',                 mychange: '&ngchange',                 // add other possible attributes here. dont think that's practical.             }         };          function link(scope, elm, attr) {         }     } })(); 

usage:

<some-widget ng-model="somemodel" .... > </some-widget> 

now if want add other stuff ng-show? ng-hide? ng-change? dont think it's practical add of them 1 one. there way add them without specifying them on scope 1 one? directive used many pages can't predict other attributes or directives other people add.

thank you.