code: func equalInt64Lists(a, b []int64) bool {
  	if len(a) != len(b) {
  		return false
  	}
  	for i, s := range a {
  		if s != b[i] {
  			return false
  		}
  	}
  	return true
  }
docs: // equalInt64Lists returns true if two lists of int64 are equal.
  //
  // Order is important.