Please anyone explain what is my mistakes here.
I Want to set output values from apex action.

public class flowinputs{
            @invocableVariable public String oppId;
           }

As per above mentioned im getting oppId as input values from apex class.
But Store Output Values not showing  from my apex results  class oppsdetails, oppsdetail.
 

public class results{
            @invocableVariable public Decimal oppsdetails;
        public results(Decimal objname){this.oppsdetails=objname;}
          @invocableVariable public string oppsdetail;
        public results(string objnam){this.oppsdetail=objnam;}
        
    }

See below image output values not showing from apex class result oppdetails,oppdetail. In ouput i can't able to declare new resources also.

Please refer the below my full apex code.
 

public class checksum {
    public class flowinputs{
            @invocableVariable public String oppId;
           
    }
    public class results{
            @invocableVariable public Decimal oppsdetails;
        public results(Decimal objname){this.oppsdetails=objname;}
          @invocableVariable public string oppsdetail;
        public results(string objnam){this.oppsdetail=objnam;}
        
    }
@invocableMethod
    public static list<list<results>> countSum(list<flowinputs> requests){
        list<list<results>> Wrapperclass=new list<list<results>>();
        list<results> Resultrecords=new list<results>();
        usd.add(Resultrecords);
        List<id> oppids = new list<Id>();       
        for(flowinputs request:requests)
        {
            oppids.add(request.oppId);
            
        }
        for(AggregateResult Qsum: [select Quote__r.id quoteid,Product__r.id prid,sum(Quantity__c) qunty from QuoteLine__c where Quote__r.id=: oppids group by Product__r.id,Quote__r.id]){
           String accid =(String)Qsum.get('quoteid');
            String acid =(String)Qsum.get('prid');
            Decimal quotesums=(Decimal)Qsum.get('qunty');
           // System.debug('accid' +accid);
            System.debug('sum'+quotesums);
            Resultrecords.add(new results(quotesums));
              Resultrecords.add(new results(acid));
            Resultrecords.add(new results(accid));
        }
            
return Wrapperclass;
    }
    
}

Getting outputs but unable to store set output values from apex class to  flow.

I passed below like this also:
apex code:

public class checksum {
    public class flowinputs{
            @invocableVariable public String oppId;
           
    }
    public class results{
            @invocableVariable public Decimal oppsdetails;
        public results(Decimal objname){this.oppsdetails=objname;}
          @invocableVariable public string oppsdetail;
        public results(string objnam){this.oppsdetail=objnam;}
        
    }
@invocableMethod
    public static list<results> countSum(list<flowinputs> requests){
       
        list<results> RecordsResults=new list<results>();
      
        List<id> oppids = new list<Id>();       
        for(flowinputs request:requests)
        {
            oppids.add(request.oppId);
            
        }
        for(AggregateResult Qsum: [select Quote__r.id quoteid,Product__r.id prid,sum(Quantity__c) qunty from QuoteLine__c where Quote__r.id=: oppids group by Product__r.id,Quote__r.id]){
           String accid =(String)Qsum.get('quoteid');
            String acid =(String)Qsum.get('prid');
            Decimal quotesums=(Decimal)Qsum.get('qunty');
           // System.debug('accid' +accid);
            System.debug('sum'+quotesums);
            RecordsResults.add(new results(quotesums));
              RecordsResults.add(new results(acid));
            RecordsResults.add(new results(accid));
        }
            
return RecordsResults;
    }
    
}

for above mentioned apex code im getting Setoutput values as Oppdetails, oppdetail from apex class.


When declaring variable to set this. Im getting error like this


My Requirement is:
Invokable Contains an Input variable with for “input variable” to be passed from flow to the apex class Query all QuoteLine__c records that have the field Quote__c populated with the input variable record ID Group all returned records by the field Product__c, SUM all values in Quantity__c Return a collection variable containing the following values to be passed back to flow for further utilization. Quote ID Quote Line ID Product ID Quantity
 
Please anyone explain how can i acheive this.

Regards,
Afrose