docs: private String processVForValue(String vForValue) {
      VForDefinition vForDef = new VForDefinition(vForValue, context, logger);
  
      // Set return of the "in" expression
      currentExpressionReturnType = vForDef.getInExpressionType();
  
      String inExpression = this.processExpression(vForDef.getInExpression());
  
      // And return the newly built definition
      return vForDef.getVariableDefinition() + " in " + inExpression;
    }