export declare class GritQrCode {
  private qrCode;
  private qrCodeContainer;
  private qrMargin;
  private typeNumber;
  private mode;
  private errorCorrectionLevel;
  private dotsOptionsType;
  private cornersSquareOptionsType;
  private cornersDotOptionsType;
  /** Shows the QR code tutorial if true. */
  tutorial: boolean;
  /** Custom height and width for the qr code. */
  size: number;
  /** Qr code link url. */
  url: string;
  onChangeUrl(): void;
  componentDidLoad(): void;
  private generateQrCode;
  render(): any;
}