如何在ngx-bootstrap Modal中使用angularjs升级组件？

angular.module('myApp', ['ui.bootstrap.modal']);

<button ng-click="openModal()">打开Modal</button>

angular.module('myApp').controller('myController', function($uibModal) {
  var vm = this;

  vm.openModal = function() {
    var modalInstance = $uibModal.open({
      templateUrl: 'myModalContent.html',
      controller: 'myModalController',
      controllerAs: 'modalCtrl'
    });
  };
});

<div class="modal-header">
  <h3 class="modal-title">Modal标题</h3>
</div>
<div class="modal-body">
  <p>Modal内容</p>
</div>
<div class="modal-footer">
  <button class="btn btn-primary" ng-click="modalCtrl.ok()">确定</button>
  <button class="btn btn-default" ng-click="modalCtrl.cancel()">取消</button>
</div>

angular.module('myApp').controller('myModalController', function($uibModalInstance) {
  var modalCtrl = this;

  modalCtrl.ok = function() {
    $uibModalInstance.close();
  };

  modalCtrl.cancel = function() {
    $uibModalInstance.dismiss('cancel');
  };
});