@Override
	public String toString() {
		return "Question{" +
				"question='" + question + '\'' +
				", type='" + type + '\'' +
				'}';
	}
The type Question.

@author bnasslahsen  base class for all questions in test with polymorphism
springdoc-openapi-tests/springdoc-openapi-javadoc-tests/src/test/java/test/org/springdoc/api/v30/app174/Question.java