command property
Command is a shell line, for a caller that holds one. It is a convenience over Argv and is the only input that ever reaches a shell.
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? command;