[ bullseye ]
虚包：libghc-data-accessor-mtl-dev-0.2.0.4-d4d93
This is a virtual package. See the Debian policy for a definition of virtual packages.
负责填实 libghc-data-accessor-mtl-dev-0.2.0.4-d4d93 的软件包
- libghc-data-accessor-mtl-dev
- use Data.Accessor inside the State monad.