code: function(){
              var fields = {};
              // Iterate over the calculations, get their fields
              var keys = this.calculationIDs();
              var calculations = this.calculations;
              for (var i = 0; i < keys.length; i++) {
                  var calculation = calculations[keys[i]];
                  for (var f = 0; f < calculation.outputFieldNames().length; f++) {
                      fields[calculation.outputFieldNames()[f]] = calculation.outputFields[calculation.outputFieldNames()[f]];
                  }
              }
              return fields;
          }
docs: Returns an array of data model fields from this data model object's
  calculations.
  
  @return {Array} An array of `splunk.Service.DataModelField` objects
  of the fields from this data model object's calculations.
  
  @method splunkjs.Service.DataModelObject