[{"AttributeId":169,"AttributeName":"Abstract"},
 {"AttributeId":170,"AttributeName":"Animal"},
 {"AttributeId":171,"AttributeName":"Beach"}]

$(".attribute-tagging").select2({
    closeOnSelect: true, placeholder: ""
});

<select class="attribute-tagging" id="edit-attributes" multiple="multiple">
    <option  value="{{attribute.AttributeId}}" ng-repeat="attribute in attributes">{{attribute.AttributeName}}</option>
</select>

[170,171]