code: func (rt *skipListRT) Query(interval rangetree.Interval) rangetree.Entries {
  	entries := make(rangetree.Entries, 0, 100)
  	rt.apply(rt.top, 0, interval, func(e rangetree.Entry) bool {
  		entries = append(entries, e)
  		return true
  	})
  
  	return entries
  }
docs: // Query will return a list of entries that fall within
  // the provided interval.