import type { ReactElement } from 'react';
export declare type TPosition = {
    readonly left: number;
    readonly top: number;
};
export declare type TRect = TPosition & {
    readonly width: number;
    readonly height: number;
};
export declare type TDemoComponent = TRect & {
    onHeightChange?: (value: number) => void;
    shouldUse3d?: boolean;
    children: ReactElement;
};