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A. Unique TensorFlower authored
Improved error message by indicating detected tf version, for easier debugging. Eg, now reads "ValueError: hourglass_20 is not supported for tf version 1. See `model_builder.py` for features extractors compatible with different versions of Tensorflow". Before, the message was confusing because it might've indicated hourglass_20 was not supported (but it is... just not for tf version 1). PiperOrigin-RevId: 438053726
35176131
