declare module 'demos-react-captcha' {
  import * as React from 'react';

  export interface CaptchaProps {
    onRefresh?: () => void;
    onChange?: (verified: boolean) => void;
    placeholder?: string;
    length?: number;
    width?: number;
    height?: number;
    className?: string;
  }

  const Captcha: React.FC<CaptchaProps>;
  export default Captcha;
}
