code: public void setPricingMethod(com.google.api.ads.admanager.axis.v201805.PricingMethod pricingMethod) {
          this.pricingMethod = pricingMethod;
      }
docs: Sets the pricingMethod value for this PremiumRate.
  
  @param pricingMethod   * The method of deciding which {@link PremiumRateValue} objects
  from this
  {@code PremiumRate} to apply to a {@link ProposalLineItem}.
  
  This attribute is required.