In any char field (suppose it has value *Hello World!*), add the option `transform` having one of the following values:

* `default` or no value produces *Hello World!*
* `upper` produces *HELLO WORLD!*
* `lower` produces *hello world!*
* `title` produces *Hello World!*
* `sentence` produces *Hello world!*
* `camel` produces *helloWorld!*
* `pascal` produces *HelloWorld!*
* `snake` produces *hello_world!*