const brdocument = require('brdocument-validator')

let   isValid = brdocument.validate('111.111.111-11') // false
      isValid = brdocument.validate('474.353.233-73') // true
      isValid = brdocument.validate('11.111.111/0001-11') // false
      isValid = brdocument.validate('05.196.652/0001-67') // true

Boolean validate(String document);