toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (explicitBuckets != null) 'explicitBuckets': explicitBuckets!,
if (exponentialBuckets != null)
'exponentialBuckets': exponentialBuckets!,
if (linearBuckets != null) 'linearBuckets': linearBuckets!,
};