code: func (k *Kites) Shuffle() {
  	shuffled := make(Kites, len(*k))
  	for i, v := range rand.Perm(len(*k)) {
  		shuffled[v] = (*k)[i]
  	}
  
  	*k = shuffled
  }
docs: // Shuffle shuffles the order of the kites. This is useful if you want send
  // back a randomized list of kites.