ExperimentalOptional Readonly ExperimentalcountRow count behind the value, when it differs from value.
Readonly ExperimentalendISO-8601 instant, exclusive bucket end.
Readonly ExperimentalkeyReadonly ExperimentallabelReadonly ExperimentalstartISO-8601 instant, inclusive bucket start.
Optional Readonly ExperimentaltargetsFeature targets this mark stands for, when the producer can enumerate them cheaply. Enables mark-click to drive map/table selection directly instead of only filtering.
Readonly ExperimentalvalueMeasured value. null means "no value" and must render as an explicit
gap — never as 0 — unless the null policy is counted-as-zero.
One time-series bucket.
startis inclusive,endexclusive.