# -*- coding: utf-8 -*-
# Copyright (c) Facebook, Inc. and its affiliates.
from dataclasses import dataclass
from typing import Optional
A simple structure that contains basic shape specification about a tensor.
It is often used as the auxiliary inputs/outputs of models,
to complement the lack of shape inference ability among pytorch modules.
channels: Optional[int] = None
height: Optional[int] = None
width: Optional[int] = None
stride: Optional[int] = None