Cancels the selection of this particular series. The series is displayed in its initial style.
A series point is a data object's visual representation. It can be selected, hovered over, or hidden. You can access the data object that the series point represents using the point's data field.
Use this method to get series points in the UI component's viewport which can change during zooming and panning.
When a series is selected, this method returns true. Otherwise, the returned value is false.