无法将nsrange类型的值转换为范围

Question

如何在Swift中将NSRange转换为Range？

var copyRange = NSRange()
            copyRange.location = 0
            copyRange.length = 44
            var tmpAudioData = NSMutableData()

            tmpAudioData.appendData(audioPlayer.data?.subdata(in: copyRange)) //<- error at this line