eevent callbacks vs abstract #18

there is

export type Options = {
  margin?: Margin;
  eventsCallbacks?: {
    zoomIn?: (range: AxisRange[]) => void,
    panning?: (event: { ranges: AxisRange[], d3Event: any }) => void,
    panningEnd?: (range: AxisRange[]) => void,
    zoomOut?: (centers: {x: number, y: number}) => void,
    mouseMove?: (evt: any) => void,

and

protected abstract onMouseMove(): void;

there is recommendatyion to remove these abstract classes

... and make at least these mnethods deprecated with warting and todo