text: import {mergeOptions} from './util.js'
  import defaultOptions from './default-options.js'
  
  function Log4s (options) {
    options = options || {}
  
    this.maxLines = mergeOptions(options, defaultOptions, 'maxLines')
    this.lineMaxChars = mergeOptions(options, defaultOptions, 'lineMaxChars')
    this.logFilename = mergeOptions(options, defaultOptions, 'logFilename')
    this.lineBreak = mergeOptions(options, defaultOptions, 'lineBreak')
    this.enableLog = mergeOptions(options, defaultOptions, 'enableLog')
    this.needTimestamp = mergeOptions(options, defaultOptions, 'needTimestamp')
  
    this.logs = []
  }
  
  export default Log4s
  