@cached('clear_cache')
def get_load_holder_holes(self, name, **kw):
    p = os.path.join(paths.meta_root, 'load_holders', add_extension(name))
    holder = LoadGeometry(p)
    return holder.holes
@cached('clear_cache')
def get_load_holder_holes(self, name, **kw):
    p = os.path.join(paths.meta_root, 'load_holders', add_extension(name))
    holder = LoadGeometry(p)
    return holder.holes