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# coding=utf-8
# Copyright 2022 The IDEA Authors. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# ------------------------------------------------------------------------------------------------
# # Copyright (c) Facebook, Inc. and its affiliates.
# ------------------------------------------------------------------------------------------------
from dataclasses import dataclass
from typing import Optional
@dataclass
class ShapeSpec:
"""
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
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