code: public static com.liferay.commerce.tax.engine.fixed.model.CommerceTaxFixedRateAddressRel addCommerceTaxFixedRateAddressRel(
  		com.liferay.commerce.tax.engine.fixed.model.CommerceTaxFixedRateAddressRel commerceTaxFixedRateAddressRel) {
  		return getService()
  				   .addCommerceTaxFixedRateAddressRel(commerceTaxFixedRateAddressRel);
  	}
docs: Adds the commerce tax fixed rate address rel to the database. Also notifies the appropriate model listeners.
  
  @param commerceTaxFixedRateAddressRel the commerce tax fixed rate address rel
  @return the commerce tax fixed rate address rel that was added