import { DOMWidgetModel } from '@jupyter-widgets/base';
import { Token } from '@lumino/coreutils';
export interface IDict<T = any> {
    [key: string]: T;
}
export interface IUpdateManager {
    findRoot(modeId: DOMWidgetModel): DOMWidgetModel[];
    sendUpdateSignal(modeId: DOMWidgetModel): void;
    registerModel(model: DOMWidgetModel): void;
    registerChildModel(options: {
        child: DOMWidgetModel;
        parent: DOMWidgetModel;
    }): void;
    unregisterModel(model: DOMWidgetModel): void;
}
export declare const IUpdateManagerToken: Token<IUpdateManager>;
export interface IRegisterEventMsg {
    action: 'register_event';
    payload: {
        event: string;
        query: string | IDict;
        handler_id: string;
    };
}
export interface IUnregisterEventMsg {
    action: 'unregister_event';
    payload: {
        event: string;
        id_to_remove?: string[];
    };
}
export interface IDispatchActionMsg {
    action: 'dispatch_action';
    payload: echarts.Payload;
}
export type IKernelMsg = IRegisterEventMsg | IUnregisterEventMsg | IDispatchActionMsg;
export interface IEventHandlerParams {
    action: 'event_handler_params';
    payload: {
        event: string;
        handlerId: string;
        params?: any;
    };
}
export interface IWidgetInitMessage {
    action: 'widget_init';
}
export type IFrontendMsg = IEventHandlerParams | IWidgetInitMessage;