message: Add tensorflow.contrib to the list of forwarded top level modules
  By this fix we make `import tensorflow.contrib` succeeded. This change is hence required after I just realized that I broke it on the virtual pip package
diff: @@ -74,6 +74,7 @@ _top_level_modules = [
  "tensorflow.compiler",
  "tensorflow.lite",
  "tensorflow.keras",
  + "tensorflow.contrib",
  ]
  # Estimator needs to be handled separatedly so we can still allow both
  # import tensorflow_estimator and import tensorflow.estimator work
  