async def METHOD_NAME(request: MockPackageFieldSet) -> BuiltPackage:
    artifact = BuiltPackageArtifact(
        relpath=request.address.path_safe_spec,
        extra_log_lines=tuple(
            [f"test package into: {repo}" for repo in request.repositories.value]
            if request.repositories.value
            else []
        ),
    )
    return BuiltPackage(digest=EMPTY_DIGEST, artifacts=(artifact,))