RegisterModalPage constructor Null safety

const RegisterModalPage(
  1. {Key? key,
  2. ResponseCallback<WhoIs>? onComplete,
  3. HandleKeysCallback? onKeysGenerated,
  4. ErrorCallback? onError}
)

Implementation

const RegisterModalPage({
  Key? key,
  this.onComplete,
  this.onKeysGenerated,
  this.onError,
}) : super(key: key);