#!/usr/bin/python3
# -*- coding:utf-8 -*-

import numpy as np
from IPython import embed


class Pooling2d:

    def __init__(self,):
        pass

    def forward(self, ):
        pass

    def backward(self, ):
        pass

    def update_grad(self, ):
        pass

    def set_zero_grad(self, ):
        pass


def train_conv2d_layer(x, gt):
    pass


if __name__ == "__main__":
    embed(header="main")
