export declare function wrapTouch(event: any): any;
export declare function touchStart({ chart, event }: {
    chart: any;
    event: any;
}): void;
export declare function touchMove({ chart, event }: {
    chart: any;
    event: any;
}): void;
export declare function touchEnd({ chart, event }: {
    chart: any;
    event: any;
}): void;