add gpio

hc

2023-12-04 f33f61bdb7ca6d5ebe7a78f9d8694b91360279ac

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# Locally computed:
sha256    58a6f4277ca2bc8565222b3bbd58a177609e9c488e8a72649359ba51450db7d8    gtest-release-1.8.0.tar.gz