source_ property
Source is where the entry came from: bank_txn for an imported statement line, scan for a receipt or bill read by the scanner, commerce_txn for a sale booked by the store.
Please note: This property should have been non-nullable! Since the specification file does not include a default value (using the "default:" property), however, the generated source code must fall back to having a nullable type. Consider adding a "default:" property in the specification file to hide this note.
Implementation
String? source_;