toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (canonicalCode != null) 'canonicalCode': canonicalCode!,
if (code != null) 'code': code!,
if (message != null) 'message': message!,
if (messageSet != null) 'messageSet': messageSet!,
if (space != null) 'space': space!,
};