Relax gradient assertion for mish activation #1415
Merged
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Dug into this a bit and found that this check could conceivably fail for TF2.1. It does empirically appear more common on TF2.2, and I don't have an answer about what could have changed. As previously discussed we have no guarantee the py gradient should behave the exact same at this precision:
#1220 (comment)
Part of #1320