Fix `mypy` errors in `maths/sigmoid_linear_unit.py` (#8786)

* updating DIRECTORY.md

* Fix mypy errors in sigmoid_linear_unit.py

* updating DIRECTORY.md

* updating DIRECTORY.md

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Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>

Tianyi Zheng committed 2y ago

5ffe601c86a9b44691a4dce37480c6d904102d49

Parent: 5b0890b

Committed by GitHub <[email protected]> on 6/22/2023, 12:24:34 PM