title: tensorflow 2.1.0: has no attribute 'random_normal'
body: <p>I'm trying to get Uber's Ludwig to run. I get an error about there being no attribute 'random_normal'. I can reproduce the error in Python with these commands.</p>
  
  <pre><code>&gt;&gt;&gt; import tensorflow as tf
  &gt;&gt;&gt; tf.reduce_sum(tf.random_normal([1000,1000]))
  Traceback (most recent call last):
    File "&lt;stdin&gt;", line 1, in &lt;module&gt;
  AttributeError: module 'tensorflow' has no attribute 'random_normal'
  &gt;&gt;&gt; print(tf.__version__)
  2.1.0
  &gt;&gt;&gt; print(sys.version)
  3.7.5 (defaut, Oct 25 2019, 15:51:11)
  [GCC 7.3.0]
  </code></pre>
  
  <p>Would appreciate help re how to get past this error.</p>