Commit 145347ff authored by A. Unique TensorFlower's avatar A. Unique TensorFlower Committed by TensorFlower Gardener
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Usability improvements to @recompute_grad 

Error if fn closes over Tensor or Variable (not always detectable)
Allow None gradients to some inputs (filter out Nones before control_deps)

PiperOrigin-RevId: 211162615
parent 53f907c6
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