import type { HexString } from '@polkadot/util/types';
import React from 'react';
interface ScanType {
    signature: HexString;
}
interface Props {
    className?: string;
    onError?: (error: Error) => void;
    onScan: (scanned: ScanType) => void;
    size?: string | number;
    style?: React.CSSProperties;
}
declare function ScanSignature({ className, onError, onScan, size, style }: Props): React.ReactElement<Props>;
export declare const QrScanSignature: React.MemoExoticComponent<typeof ScanSignature>;
export {};