toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (createTime != null) 'createTime': createTime!,
if (errorType != null) 'errorType': errorType!,
if (eventType != null) 'eventType': eventType!,
if (expireTime != null) 'expireTime': expireTime!,
if (id != null) 'id': id!,
if (state != null) 'state': state!,
if (target != null) 'target': target!,
};