message: Use tuple instead of list to reduce the chance of it being picked by the list conversions.
diff: @@ -33,7 +33,7 @@ class AssertsTransformer(transformer.Base):
  # Note: The lone tf.Assert call will be wrapped with control_dependencies
  # by side_effect_guards.
  template = """
  - tf.Assert(test, [msg])
  + tf.Assert(test, (msg,))
  """
  if node.msg is None:
  