+ :ref: The git commit reference (SHA-1 code) to tag with the version string.
+ :log_dir: The suffix of the logs URL reported on successful completion
+ by the Jenkins merge job that created and pushed the distribution
+ files to the staging repository. For example, use value
+ "example-project-packagecloud-merge-/21" for the logs URL
+ https://logs.lf-project.org/production/vex-sjc-lfp-jenkins-prod-1/example-project-packagecloud-merge/21
+ :version: The semantic version string used for the package.