export declare const OptionalPortal: import("vue").DefineComponent<import("vue").ExtractPropTypes<{
    withinPortal: {
        type: BooleanConstructor;
        default: boolean;
    };
    target: {
        type: (ObjectConstructor | StringConstructor)[];
        default: undefined;
    };
    reuseTargetNode: {
        type: BooleanConstructor;
        default: boolean;
    };
}>, () => import("vue").VNode<import("vue").RendererNode, import("vue").RendererElement, {
    [key: string]: any;
}> | import("vue").VNode<import("vue").RendererNode, import("vue").RendererElement, {
    [key: string]: any;
}>[] | undefined, {}, {}, {}, import("vue").ComponentOptionsMixin, import("vue").ComponentOptionsMixin, {}, string, import("vue").PublicProps, Readonly<import("vue").ExtractPropTypes<{
    withinPortal: {
        type: BooleanConstructor;
        default: boolean;
    };
    target: {
        type: (ObjectConstructor | StringConstructor)[];
        default: undefined;
    };
    reuseTargetNode: {
        type: BooleanConstructor;
        default: boolean;
    };
}>> & Readonly<{}>, {
    target: string | Record<string, any>;
    reuseTargetNode: boolean;
    withinPortal: boolean;
}, {}, {}, {}, string, import("vue").ComponentProvideOptions, true, {}, any>;
