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+haskell-th-reify-many (reify template haskell datatype info)
+
+th-reify-many provides functions for recursively reifying top level
+declarations. The main intended use case is for enumerating the names
+of datatypes reachable from an initial datatype, and passing these
+names to some function which generates instances.
+
+After uninstalling, run this command to unregister the package from
+the ghc package database: ghc-pkg recache