primaryValue
GaugeChartConditionalFormattingOption.Builder primaryValue(GaugeChartPrimaryValueConditionalFormatting primaryValue) 
 The conditional formatting for the primary value of a GaugeChartVisual.
 
- Parameters:
 primaryValue- The conditional formatting for the primary value of aGaugeChartVisual.- Returns:
 - Returns a reference to this object so that method calls can be chained together.