toJson method
Implementation
Map<String, Object?> toJson() {
final end = this.end;
final state = this.state;
return {
'chunk': chunk.map((v) => v.toJson()).toList(),
if (end != null) 'end': end,
'start': start,
if (state != null) 'state': state.map((v) => v.toJson()).toList(),
};
}