There is a new pull request by bra1nwave against master on the void-packages repository

https://github.com/bra1nwave/void-packages marshmallow
https://github.com/void-linux/void-packages/pull/23519

python3-marshmallow: update to 3.7.0.


A patch file from https://github.com/void-linux/void-packages/pull/23519.patch is attached