https://commons.apache.org/proper/commons-validator/apidocs/org/apache/commons/validator/routines/checkdigit/LuhnCheckDigit.html
LuhnCheckDigit (Apache Commons Validator 1.10.2-SNAPSHOT API)
declaration: package: org.apache.commons.validator.routines.checkdigit, class: LuhnCheckDigit
apache commonsvalidatorsnapshotapi