Query on /Chassis/{{id}}/Power response

Logically all this 3 properties (Voltages, PowerControl and PowerSupplies) of power schema(2019.4) are of array type and also as per schema these 3 properties are not mandatory properties (not listed under required attribute in schema).

There are situation where we cannot get the PowerControl values. In this situation is it ok not to have PowerControl property in the response just like below

{
     "Voltages":[..],
     "Voltages@odata.count":10,
     "PowerSupplies":[..],
     "PowerSupplies@odata.count":5,
}

Or, do we need to display empty array object without any array member as shown below

{
     "PowerControl":[],
     "PowerControl@odata.count":0,
     "Voltages":[..],
     "Voltages@odata.count":10,
     "PowerSupplies":[..],
     "PowerSupplies@odata.count":5,
}

Which approach is valid?