code: public static TimeSeries createWithOnePoint(
        List<LabelValue> labelValues, Point point, @Nullable Timestamp startTimestamp) {
      Utils.checkNotNull(point, "point");
      return createInternal(labelValues, Collections.singletonList(point), startTimestamp);
    }
docs: Creates a {@link TimeSeries}.
  
  @param labelValues the {@code LabelValue}s that uniquely identify this {@code TimeSeries}.
  @param point the single data {@code Point} of this {@code TimeSeries}.
  @param startTimestamp the start {@code Timestamp} of this {@code TimeSeries}. Must be non-null
  for cumulative {@code Point}s.
  @return a {@code TimeSeries}.
  @since 0.17