Control.Monad.Trans.Accum
type Accum w
accum
runAccum
execAccum
evalAccum
mapAccum
data AccumT w m a
runAccumT
execAccumT
evalAccumT
mapAccumT
look
looks
add
liftCallCC
liftCallCC'
liftCatch
liftListen
liftPass
readerToAccumT
writerToAccumT
accumToStateT