úÎI¿Safe2This is basically specialized 'Either String', or  with error messages.Convert  into another      excep_LehSdFnS8TrCo96Zl0TfFoControl.Exceptional ExceptionalFailureSuccessrunExceptional$fMonadExceptional$fAlternativeExceptional$fApplicativeExceptional$fFunctorExceptionalbaseGHC.BaseMaybeMonad