How to use the method

ActionPlan.cls

       pageParams = ApexPages.CurrentPage().getParameters();
       string theId;
       if (pageParams.containsKey('id')) {
           theId = pageParams.get('id');
       } else {
           return null;
       }

       //now go look up the account using getObject method

       Account toClone = (Account) DataUtils.getObject('Account', theId);
       insert toClone;

       //inserted the clone