docs: function handle(filePath) {
      var file = toVFile(filePath)
      var result = test(file)
  
      if (mask(result, INCLUDE)) {
        if (one) {
          callback(null, file)
          return true
        }
  
        results.push(file)
      }
  
      if (mask(result, BREAK)) {
        callback(null, one ? null : results)
        return true
      }
    }