code: def register_packages(ctx, repo=None, dry_run=False):
      
      original_ctx = ctx
      if repo is None:
          repo = ctx.project.repo or "pypi"
      if dry_run:
          ctx = DryRunContext(ctx)
  
      packages = ensure_packages_exist(original_ctx)
      print_packages(packages)
      for artifact in packages:
          ctx.run("twine register --repository={repo} {artifact}".format(
                  artifact=artifact, repo=repo))
docs: Register release (packages) in artifact-store/repository.