toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (bucketSize != null) 'bucketSize': bucketSize!,
if (bucketValueCount != null) 'bucketValueCount': bucketValueCount!,
if (bucketValues != null) 'bucketValues': bucketValues!,
if (valueFrequencyLowerBound != null)
'valueFrequencyLowerBound': valueFrequencyLowerBound!,
if (valueFrequencyUpperBound != null)
'valueFrequencyUpperBound': valueFrequencyUpperBound!,
};