dataLabels property
Extended data labels for range series types. Range series data labels
have no x and y options. Instead, they have xLow, xHigh,
yLow and yHigh options to allow the higher and lower data label
sets individually.
API Docs: https://api.highcharts.com/highcharts/series.columnrange.dataLabels
Implementation
HighchartsColumnRangeSeriesDataLabelsOptions? dataLabels;