async def METHOD_NAME(mounted_volumes: MountedVolumes) -> None:
    # NOTE: by creating a hidden file on all mounted volumes
    # the same permissions are ensured and avoids
    # issues when starting the services
    for volume_path in mounted_volumes.all_disk_paths_iter():
        hidden_file = volume_path / HIDDEN_FILE_NAME
        hidden_file.write_text(
            f"Directory must not be empty.\nCreated by {__file__}.\n"
            "Required by oSPARC internals to properly enforce permissions on this "
            "directory and all its files"
        )