ContributorMural::Annotations
Emits GitHub Actions workflow commands (annotations) and step outputs. https://docs.github.com/en/actions/reference/workflow-commands-for-github-actions
Class methods
io
SourceAppends a step output to GITHUB_OUTPUT. No-op outside of GitHub Actions.
Reported rather than raised: the outputs are written after the mural
already is, so failing here would throw away work that is finished and
correct over a downstream step's convenience. The warning is what tells
anyone reading the log why steps.*.outputs came back empty.