# Copyright (c) Meta Platforms, Inc. and affiliates.
# All rights reserved.
#
# This source code is licensed under the BSD-style license found in the
# LICENSE file in the root directory of this source tree.


from typing import Any, Dict, Protocol, runtime_checkable


@runtime_checkable
class Stateful(Protocol):
    """Protocol for objects implementing both ``state_dict()`` and ``load_state_dict(state_dict: Dict[str, Any])``"""

    def state_dict(self) -> Dict[str, Any]:
        ...

    def load_state_dict(self, state_dict: Dict[str, Any]) -> None:
        ...