=<< | Control.Monad.IdentityX, Control.Monad.ErrorX, Control.Monad.ReaderX, Control.Monad.StateX.Lazy, Control.Monad.StateX, Control.Monad.StateX.Strict, Control.Monad.WriterX.Lazy, Control.Monad.WriterX, Control.Monad.RWSX.Lazy, Control.Monad.RWSX, Control.Monad.RWSX.Strict, Control.Monad.WriterX.Strict |