How to use the flying-squid.experience function in flying-squid

const { distanceToXpLevel, getXpLevel, getBaseXpFromLevel } = require('flying-squid').experience

module.exports.player = function (player, serv) {
  player.xp = 0
  player.displayXp = 0
  player.xpLevel = 0

  player.sendXp = () => {
    player._client.write('experience', {
      experienceBar: player.displayXp,
      level: player.level,
      totalExperience: player.xp
    })
  }

  player.setXpLevel = (level) => {
    player.xpLevel = level