toJson method
Implementation
Map<String, dynamic> toJson() {
final anchor = this.anchor;
final source = this.source;
final start = this.start;
final timestampOffset = this.timestampOffset;
return {
if (anchor != null) 'anchor': anchor,
if (source != null) 'source': source.toValue(),
if (start != null) 'start': start,
if (timestampOffset != null) 'timestampOffset': timestampOffset,
};
}