public void accept( ReportModelVisitor visitor ) {
        visitor.visit( this );
        visitStepsRecursively( visitor, getSteps(), 0 );
        visitor.visitEnd( this );
    }
An optional description of the case.
Can be {@code null}
jgiven-core/src/main/java/com/tngtech/jgiven/report/model/ScenarioCaseModel.java