code: public ChannelBuffer formatAggregatorsV1(final Set<String> aggregators) {
      throw new BadRequestException(HttpResponseStatus.NOT_IMPLEMENTED, 
          "The requested API endpoint has not been implemented", 
          this.getClass().getCanonicalName() + 
          " has not implemented formatAggregatorsV1");
    }
docs: Format the list of implemented aggregators
  @param aggregators The list of aggregation functions
  @return A ChannelBuffer object to pass on to the caller
  @throws BadRequestException if the plugin has not implemented this method