toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (iosReceipt != null) 'iosReceipt': iosReceipt!,
if (iosSecret != null) 'iosSecret': iosSecret!,
if (phoneNumber != null) 'phoneNumber': phoneNumber!,
if (recaptchaToken != null) 'recaptchaToken': recaptchaToken!,
};