code: private void createElement(XsdElement element, String apiName) {
          String elementName = element.getName();
  
          if (!createdElements.containsKey(getCleanName(elementName))){
              createdElements.put(getCleanName(elementName), element);
              xsdAsmInstance.generateClassFromElement(element, apiName);
          }
      }
docs: Creates a class based on a {@link XsdElement} if it wasn't been already.
  @param element The element that serves as base to creating the class.
  @param apiName The name of the generated fluent interface.