title: In tensorflow serving, how to store a list in feature dictionary?
body: <p>I'm pretty new with tensorflow serving, now I'm working with client-end coding.</p>
  
  <p>With the basic tutorial, I know I need to build a feature dictionary like:</p>
  
  <pre><code>feature_dict={
      'input_content':tf.train.Feature(...)
      'input_label':tf.train.Feature(...)
  }
  </code></pre>
  
  <p>Then,</p>
  
  <pre><code>model_input=tf.train.Example(feature=tf.train.Features(feature=feature_dict))
  </code></pre>
  
  <p>Now, my question is, how can I put a list into the feature_dict?
  Like, I have a 10 dimension list, I want to set it as the 'input_content', how can I get that?</p>