import { StepEvent } from "graph-navigation-js";
export type ModalType = "partial" | "full-screen";
export declare class ModalEvent extends StepEvent {
    type: string;
    title: string;
    subTitle: string | null;
    imageUrl: string | null;
    buttonLabel: string | null;
    buttonAction: StepEvent | null;
    modalType: ModalType;
    constructor(title: string, modalType: ModalType, subTitle?: string | null, imageUrl?: string | null, buttonLabel?: string | null, buttonAction?: StepEvent | null);
}