# tensorplay.optim.swa_utils.update_bn

Source: https://www.tensorplay.cn/docs/generated/tensorplay.optim.swa_utils.update_bn.html

# tensorplay.optim.swa_utils.update_bn

tensorplay.optim.swa_utils.update_bn(loader: Iterable[Any], model: [Module](tensorplay.nn.modules.module.Module.html#tensorplay.nn.modules.module.Module), device: [int](https://docs.python.org/3/library/functions.html#int) | tp.device | [None](https://docs.python.org/3/library/constants.html#None) = None) → [None](https://docs.python.org/3/library/constants.html#None)[[source]](../_modules/tensorplay/optim/swa_utils.html#update_bn)