toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (languageCode != null) 'languageCode': languageCode!,
if (phoneNumber != null) 'phoneNumber': phoneNumber!,
if (phoneRegionCode != null) 'phoneRegionCode': phoneRegionCode!,
if (phoneVerificationMethod != null)
'phoneVerificationMethod': phoneVerificationMethod!,
};