| IThrowable | Interface describing all Throwable's |
| Catcher | Generic Exception catch handler |
| Exception | Core Throwable Exception error to be subclassed for error specificity and logging |
| FatalArgumentException | Throwable Fatal Argument FatalException Error |
| FatalException | Throwable Fatal Exception (logs with level type 'fatal') |
| FatalOperationException | Throwable Fatal Operation FatalException Error |
| FatalStateException | Throwable Fatal State FatalException Error |
| IllegalArgumentException | Throwable Illegal Argument Exception Error |
| IllegalOperationException | Throwable Illegal Operation Exception Error |
| IllegalStateException | Throwable Illegal State Exception Error |
| Throwable | Abstract Throwable mixin class for Exception classes |
