import tensorflow.contrib as tf_contrib

在Flow 2.x版本中，已经舍弃了tensorflow.contrib模块。所以在代码中导入`import tensorflow.contrib as tf_contrib`会导致ModuleNotFoundError。

要解决这个问题，可以将代码中的`import tensorflow.contrib as tf_contrib`修改为`import tf_slim as slim`，并安装tf_slim库。这样就可以继续使用相应的功能了。

请注意，这只是一个示例代码演示如何修改导入语句，具体修改方式可能因代码结构和依赖关系而有所不同。根据你的具体情况进行修改即可。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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