toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (followGaeApplication != null)
'followGaeApplication': followGaeApplication!,
if (kind != null) 'kind': kind!,
if (secondaryZone != null) 'secondaryZone': secondaryZone!,
if (zone != null) 'zone': zone!,
};