exitSuccess -package:overhang

The computation exitSuccess is equivalent to exitWith ExitSuccess, It terminates the program successfully.
Lifted version of exitSuccess.
>>> exitSuccess
*** Exception: ExitSuccess
Lifted version of "System.Exit.exitSuccess". @since 0.1.9.0.
indicates successful termination;
indicates successful termination;
_ExitSuccess :: Prism' ExitCode      ()
_ExitSuccess :: Prism' SomeException ()