key := TimeKey
		val := r.Time.Round(0) // strip monotonic to match Attr behavior
		if rep == nil {
			state.appendKey(key)
			state.appendTime(val)
		} else {
			state.appendAttr(Time(key, val))
		}
	}
	// level
	key := LevelKey
	val := r.Level
	if rep == nil {
		state.appendKey(key)
		state.appendString(val.String())
	} else {
		state.appendAttr(Any(key, val))
	}
	// source