code: public static CommerceTaxFixedRateAddressRel findByCPTaxCategoryId_First(
  		long CPTaxCategoryId,
  		OrderByComparator<CommerceTaxFixedRateAddressRel> orderByComparator)
  		throws com.liferay.commerce.tax.engine.fixed.exception.NoSuchTaxFixedRateAddressRelException {
  		return getPersistence()
  				   .findByCPTaxCategoryId_First(CPTaxCategoryId,
  			orderByComparator);
  	}
docs: Returns the first commerce tax fixed rate address rel in the ordered set where CPTaxCategoryId = &#63;.
  
  @param CPTaxCategoryId the cp tax category ID
  @param orderByComparator the comparator to order the set by (optionally <code>null</code>)
  @return the first matching commerce tax fixed rate address rel
  @throws NoSuchTaxFixedRateAddressRelException if a matching commerce tax fixed rate address rel could not be found