toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (documents != null) 'documents': documents!,
if (once != null) 'once': once!,
if (query != null) 'query': query!,
if (readTime != null) 'readTime': readTime!,
if (resumeToken != null) 'resumeToken': resumeToken!,
if (targetId != null) 'targetId': targetId!,
};