title: Unable to Enable Tensorflows Eager execution
body: <p>I have an conda environment with Tensorflow 2.0.0-beta1 installed. However whenever I import tensorflow and attempt to enable eager execution I get the error : </p>
  
  <pre><code>AttributeError: module 'tensorflow' has no attribute 'enable_eager_execution'
  </code></pre>
  
  <p>The only code that I have run for this is: </p>
  
  <pre><code>import tensorflow as tf
  print(tf.__version__)
  tf.enable_eager_execution()
  </code></pre>
  
  <p>Is this an error with the tensorflow 2.0 beta module or an issue with my installation ? </p>