toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (count != null) 'count': count!,
if (name != null) 'name': name!,
if (params != null) 'params': params!,
if (previousTimestampMillis != null)
'previousTimestampMillis': previousTimestampMillis!,
if (timestampMillis != null) 'timestampMillis': timestampMillis!,
};