code: public Deferred<Object> publishHistogramPoint(final String metric,
                                                     final long timestamp, final byte[] value,
                                                     final Map<String, String> tags,
                                                     final byte[] tsuid) {
      throw new UnsupportedOperationException("Not yet implemented");
    }
docs: Called any time a new histogram point is published
  @param metric The name of the metric associated with the data point
  @param timestamp Timestamp as a Unix epoch in seconds or milliseconds
  (depending on the TSD's configuration)
  @param value Encoded raw data blob for the histogram point
  @param tags Tagk/v pairs
  @param tsuid Time series UID for the value
  @return A deferred without special meaning to wait on if necessary. The
  value may be null but a Deferred must be returned.