def clone_fallback_to_fetch(*args, **kwargs):
    try:
        backend.clone(context, disk_images['image_id'])
    except exception.ImageUnacceptable:
        libvirt_utils.fetch_image(*args, **kwargs)
def clone_fallback_to_fetch(*args, **kwargs):
    try:
        backend.clone(context, disk_images['image_id'])
    except exception.ImageUnacceptable:
        libvirt_utils.fetch_image(*args, **kwargs)