title: AttributeError: module 'torch' has no attribute 'hstack'
body: <p>I am following <a href="https://pytorch.org/docs/master/generated/torch.hstack.html" rel="nofollow noreferrer">this</a> doc for <code>hstack</code>.</p>
  <pre><code>a = torch.tensor([1, 2, 3])
  b = torch.tensor([4, 5, 6])
  torch.hstack((a,b))
  </code></pre>
  <p>But I keep getting the error:</p>
  <pre><code>AttributeError: module 'torch' has no attribute 'hstack'
  </code></pre>
  <p>Here is the torch version that results in this error:</p>
  <pre><code>torch.__version__
  '1.6.0+cpu'
  </code></pre>
  <p>What am I doing wrong?</p>