curl --request GET \
  --url http://localhost:3000/v1/inventory/groups/{locationCode}

{
  "children": [
    null
  ],
  "inventory": [
    null
  ],
  "totals": {
    "total_quantity": 123,
    "reserved_quantity": 123,
    "available_quantity": 123,
    "item_count": 123
  },
  "group": null
}