toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (customer != null) 'customer': customer!,
if (filter != null) 'filter': filter!,
if (googleCloudPubsubTopic != null)
'googleCloudPubsubTopic': googleCloudPubsubTopic!,
if (name != null) 'name': name!,
};