Interface DragHandler

interface DragHandler {
    init: (drag: Drag) => void;
    onBeforeStart?: (beforeStartParams: BeforeStartEventParams) => void;
    onDrag: (params: DragEventParams) => void;
    onDragAbort: (el: Element) => void;
    onDragInit: (el: Element, e: MouseEvent) => Element;
    onStart: (params: DragStartEventParams) => boolean;
    onStop: (params: DragStopEventParams) => void;
    reset: () => void;
    selector: string;
}