Dashboard Reference Line Label Configuration
constructor(customLabelConfiguration: DashboardReferenceLineCustomLabelConfiguration? = null, fontColor: String? = null, fontConfiguration: DashboardFontConfiguration? = null, horizontalPosition: DashboardReferenceLineLabelHorizontalPosition? = null, valueLabelConfiguration: DashboardReferenceLineValueLabelConfiguration? = null, verticalPosition: DashboardReferenceLineLabelVerticalPosition? = null)