run property
Run is any other toolchain's build command, run by sh -c in this entry's image, and it selects the OTHER LANE. Arbitrary shell is the point — it is the same trust as a Dockerfile RUN — which is why it executes with no object-store credential and no service-account token. It requires out.
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? run;