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GHC 10.0.0.20260917 · lts/ghc-10.0.x · 8fef28d · 2026-11-02

Moduletransformers-0.6.3.0Haskell2010

Control.Monad.Trans.Writer

The WriterT monad transformer. This version builds its output lazily; for a constant-space version with almost the same interface, see Control.Monad.Trans.Writer.CPS.