title: how can I import "Dense3D" and use it in code?
body: <p>I tried to run a code from git but i found a problem with importing Dense3D.
  here the part of code witch relate to the problem:</p>
  
  <p>here the part of code that relate to the problem:</p>
  
  <pre class="lang-py prettyprint-override"><code>   import torch
     from torch.models import Dense3D
     import torch.nn as nn
     #some lines deleted
     print("Loading options...")
     with open(sys.argv[1], 'r') as optionsFile:
         options = toml.loads(optionsFile.read())
     #Create the model.
     model = Dense3D(options)
  </code></pre>
  
  <p>it make error that <i>"can't import Dense3D"</i> or something like this in another tries with some changes.</p>
  
  <p>and i used colab .</p>