/** extension 插件自定义事件（非 @logicflow/core EventType） */
export declare enum ExtensionEventType {
    GROUP_ADD_NODE = "group:add-node",
    GROUP_REMOVE_NODE = "group:remove-node",
    GROUP_NOT_ALLOWED = "group:not-allowed"
}
/** 常用于 lf.on / lf.off 的组合事件名 */
export declare const NODE_DRAG_EVENTS = "node:drag,node:dnd-drag";
export declare const NODE_ADD_DROP_DND_EVENTS = "node:add,node:drop,node:dnd-add";