title: UsageError: Line magic function `%tensorflow_version` not found
body: <p>I've got TensorFlow installed on my machine however I'm keep getting the error: <code>UsageError: Line magic function `%tensorflow_version` not found.</code></p>
  
  <p>Any ideas as to why this is? The code I ran is below (Jupyter Notebook)</p>
  
  <pre><code>%tensorflow_version 1.x
  import tensorflow as tf
  print(tf.__version__)
  </code></pre>