Display item unit from group item

Setup, Configuration and Use Widgets
1

Hi,is it possible to display unit of group items in this custom widget please ?
I’m searching for attribute like itemUnit(item.name)
Last OH 2, raspbian bullseye
Thanks.

<div class="row" ng-repeat="item in itemsInGroup('AGVolt')">
  <div class="col-xs-8 text-right"><span style="color: yellow; font-size: 15pt">{{item.label}}</span></div>
  <div class="col-xs-4 text-left"><span style="color: white; font-size: 15pt">{{itemValue(item.name) + itemUnit(item.name)}</span></div>
</div>

If a loop is not used, the unit can be separatelly added for each item like:
{{itemValue(‘Outside_Temperature’)}}°C
but in a loop I don’t know if a unit parameter can be used.