message: Fix a Hub export test
  Apparently it's getting a FunctionDef with duplicate output names. The names only matter for importing Defuns, so ignoring the issue seems fine for now.
diff: @@ -358,6 +358,10 @@ class _EagerDefinedFunction(object):
  if (graph_output_names is not None
  and all(t in graph_output_names for t in outputs)):
  output_names = [compat.as_bytes(graph_output_names[t]) for t in outputs]
  + if len(set(output_names)) != len(output_names):
  + # There are duplicate names for some reason, probably an invalid
  + # signature. Revert to auto-naming.
  + output_names = []
  else:
  output_names = []
  fn = pywrap_tensorflow.TF_GraphToFunction_wrapper(
  