+ Added some exception classes to raise in the "argumentified" functions to show *parser error* to the user: `ArgumentError`, `IncompatibleArguments`, `RequiredArgument`, `TooFewArguments`
2.9.2
+ Added `Sequence[T]` as a supported type to the ColorizingArgumentParser. + Bug fixes.
2.9.1
+ Update `README.md`.
2.9.0
+ Added `<<` and `>>` (left shift and right shift operators) to `log21.Logger.Logger`.
2.8.1
+ Fixed Carriage Return Handling. + Fixed setting level using `log21.basic_config` + Added more configuration for developer tools to the `pyproject.toml` file. + Added pre-commit.