'options-multiple-all-none-buttons': {
      scope: {selectedIcons: ['Globe'], icons: [{value: 'Gear', label: '> Gear'}, {value: 'Globe', label: '> Globe'}, {value: 'Heart', label: '> Heart'}, {value: 'Camera', label: '> Camera'}]},
      element: '<button type="button" class="btn" data-multiple="1" all-none-buttons="{{allNoneButtons}}" ng-model="selectedIcons" bs-options="icon.value as icon.label for icon in icons" bs-select></button>'
    },