toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (distanceMeasure != null) 'distanceMeasure': distanceMeasure!,
if (limit != null) 'limit': limit!,
if (queryVector != null) 'queryVector': queryVector!,
if (vectorField != null) 'vectorField': vectorField!,
};