code: func (irt *immutableRangeTree) Get(entries ...Entry) Entries {
  	result := make(Entries, 0, len(entries))
  	for _, entry := range entries {
  		result = append(result, irt.get(entry))
  	}
  
  	return result
  }
docs: // Get returns any entries that exist at the addresses provided by the
  // given entries.  Entries are returned in the order in which they are
  // received.  If an entry cannot be found, a nil is returned in its
  // place.