code: function report(file, node, threshold, target, results) {
    var length = results.length
    var index = -1
    var failCount = 0
    var confidence
    var message
  
    while (++index < length) {
      if (results[index] > target) {
        failCount++
      }
    }
  
    if (failCount / length >= threshold) {
      confidence = failCount + '/' + length
  
      message = file.warn(
        'Hard to read sentence (confidence: ' + confidence + ')',
        node,
        source
      )
      message.confidence = confidence
      message.source = source
      message.actual = toString(node)
      message.expected = null
    }
  }
docs: /* eslint-disable max-params Report the `results` if they’re reliably too hard for the `target` age.