@Override
	public Operation customize(Operation operation, HandlerMethod handlerMethod) {
		CustomizedOperation annotation = handlerMethod.getMethodAnnotation(CustomizedOperation.class);
		if (annotation != null) {
			operation.description(operation.getDescription() + ", " + annotation.addition());
		}
		return operation;
	}
Customize operation.

@param operation     the operation
@param handlerMethod the handler method
@return the operation
springdoc-openapi-tests/springdoc-openapi-javadoc-tests/src/test/java/test/org/springdoc/api/v30/app70/customizer/OperationCustomizer.java