What's Changed
* Add placeholder by altescy in https://github.com/altescy/colt/pull/73
* Use textwrap.indent and remove utils.indent by altescy in https://github.com/altescy/colt/pull/74
* Skip validation if placeholder is set without type hint by altescy in https://github.com/altescy/colt/pull/75
* Add callback option by altescy in https://github.com/altescy/colt/pull/76
* Fix typehint for callback by altescy in https://github.com/altescy/colt/pull/77
* Modify callback handling & utils by altescy in https://github.com/altescy/colt/pull/78
* Add context feature by altescy in https://github.com/altescy/colt/pull/79
* Fix type hint of import_modules by altescy in https://github.com/altescy/colt/pull/80
* Bump version number to v0.14.0 by altescy in https://github.com/altescy/colt/pull/81
**Full Changelog**: https://github.com/altescy/colt/compare/v0.13.1...v0.14.0