/// <reference types="node" />
import * as React from 'react';
interface IQRCodeDisplayState {
    img: string | Buffer;
    data: string;
}
interface IQRCodeDisplayProps {
    data: string;
}
declare class QRCodeDisplay extends React.Component<IQRCodeDisplayProps, IQRCodeDisplayState> {
    state: {
        img: string;
        data: string;
    };
    componentDidMount(): void;
    componentDidUpdate(prevProps: IQRCodeDisplayProps): void;
    updateQRCodeImage(): void;
    render(): JSX.Element | null;
}
export default QRCodeDisplay;
//# sourceMappingURL=QRCodeDisplay.d.ts.map