TLPointerEventTarget

type TLPointerEventTarget =
  | {
      handle: TLHandle;
      shape: TLShape;
      target: "handle";
    }
  | {
      handle?: TLSelectionHandle;
      shape?: undefined;
      target: "selection";
    }
  | {
      shape: TLShape;
      target: "shape";
    }
  | {
      shape?: undefined;
      target: "canvas";
    };