rateType:
      type: string
      description: | The pricing method used to determine the base rate. It will generally be associated with chargeUnitofMeasure CWT, FLAT, or SPOT. For instance, a shipment rated on the Czar99 tariff will have ChargeUnitofMeasure CWT and rateType TAR. 
        Valid values:
          <pre>
          * TAR - Tarriff Pricing 
          * DYN - Dynamic Rates 
          * COM - Commodity Rates 
          * CAR - Carpet Rates 
               </pre>