Interface DragEventMap

interface DragEventMap {
    drag: (e: DragEvent) => void;
    drag_end: (e: DragEvent) => void;
    drag_start: (e: DragEvent) => void;
    move: (e: DragEvent) => void;
    pinch: (e: PinchEvent) => void;
    zoom: (e: DragEvent) => void;
}