n"><span class="hljs-keyword">def</span> <span class="hljs-title">middle_flow</span><span class="hljs-params">(tensor)</span>:</span>
    <span class="hljs-keyword">for</span> _ <span class="hljs-keyword">in</span> range(<span class="hljs-number">8</span>):
        x = ReLU()(tensor)
        x = sep_bn(x, filters=<span class="hljs-number">728</span>, kernel_size=<span class="hljs-number">3</span>)
        x = ReLU()(x)
        x = sep_bn(x, filters=<span class="hljs-number">728</span>, kernel_size=<span cla