constructor (type, eventInitDict = {}) {
    webidl.argumentLengthCheck(arguments, 1, { header: 'CloseEvent constructor' })

    type = webidl.converters.DOMString(type)
    eventInitDict = webidl.converters.CloseEventInit(eventInitDict)

    super(type, eventInitDict)

    this.#eventInit = eventInitDict
  }
Take n bytes from the buffered Buffers
@param {number} n
@returns {Buffer|null}