public static list<sobject> resetRecordIdsInList(list<sobject> sObjs){

        for(sobject s : sObjs){

            s.put('Id', Null);
            s.put('parent_Id__c',Null);
            s.putSObject('parent_ID__r', new parent__c(External_Id__c = ExternalId));
        }

         return sObjs;
    }