toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (hasMoreResults != null) 'hasMoreResults': hasMoreResults!,
if (resultCountEstimate != null)
'resultCountEstimate': resultCountEstimate!,
if (resultCountExact != null) 'resultCountExact': resultCountExact!,
if (source != null) 'source': source!,
};