connectionString property
ConnectionString is the ready-to-use DSN, credential included. RETURNED HERE ONCE: no read beside this one carries it, so a caller that does not keep it must provision again.
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? connectionString;