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Python functions must return zero or more `Tensor`s or `ExtensionType`s or `None` values #367

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khatchad opened this issue Sep 24, 2024 · 0 comments

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khatchad commented Sep 24, 2024 •

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FAILED tests/keras/test_factorized_top_k.py::TestFactorizedTopK::test_factorized_topk_metrics0 - TypeError: To be compatible with tf.function, Python functions must return zero or more Tensors or ExtensionTypes or None values; in compilation of <function FactorizedTopK.update_state at 0x7508542b2830>, found return value of type Operation, which is not a Tensor or ExtensionType.

https://www.tensorflow.org/guide/extension_type

tf.function has certain restrictions on what types of values Python functions can return.
tf.function decorated functions can only return:
- Zero or more Tensor objects (the core data structure in TensorFlow).
- Zero or more ExtensionType objects (certain custom TensorFlow types).
- None.

https://g.co/gemini/share/69dac2e125e9

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