tooltip property
A configuration object for the tooltip rendering of each single
series. Properties are inherited from tooltip.
Overridable properties are headerFormat, pointFormat,
yDecimals, xDateFormat, yPrefix and ySuffix. Unlike other
series, in a scatter plot the series.name by default shows in the
headerFormat and point.x and point.y in the pointFormat.
API Docs: https://api.highcharts.com/highcharts/series.scatter.tooltip
Implementation
HighchartsScatterSeriesTooltipOptions? tooltip;