def image_volume_cache_get_by_volume_id(context, volume_id):
 return IMPL.image_volume_cache_get_by_volume_id(context, volume_id)

def image_volume_cache_get_by_volume_id ( context , volume_id ) : return IMPL . image_volume_cache_get_by_volume_id ( context , volume_id )
query to see if a volume id is an image-volume contained in the cache .