-number">3</span>)
    x = ReLU()(x)
    x = sep_bn(x, filters=<span class="hljs-number">728</span>, kernel_size=<span class="hljs-number">3</span>)
    x = MaxPool2D(pool_size=<span class="hljs-number">3</span>, strides=<span class="hljs-number">2</span>, padding=<span class="hljs-string">'same'</span>)(x)

    tensor = conv_bn(tensor, filters=<span class="hljs-number">728</span>, kernel_size=<span class="hljs-number">1</span>, strides=<span class="hljs-number">2</span>)
    x = Add()([tensor, x])

    <sp