1.17.7: Introduced `formatter()`
- Introduced:
formatter()which returns callable formatters for valid text formatters such as ‘red’ or ‘bold_on_red’, returning a NullCallableString if passed an invalid text formatter.
formatter() which returns callable formatters for valid text formatters such as ‘red’ or ‘bold_on_red’, returning a NullCallableString if passed an invalid text formatter.