Transaction constructor
Transaction({})
Implementation
factory Transaction({
required DateTime date,
@Default('*') String flag,
String? payee,
String? narration,
@Default([]) List<String> tags,
@Default([]) List<String> links,
@Default({}) Map<String, MetaValue> metadata,
@Default([]) List<Posting> postings,
String? comment,
}) = _Transaction;