code: private InterfaceInfo groupMethod(String groupName, XsdChoice choiceElement, XsdAll allElement, XsdSequence sequenceElement, String className, int interfaceIndex, String apiName){
          if (allElement != null) {
              return iterativeCreation(allElement, className, interfaceIndex + 1, apiName, groupName).get(0);
          }
  
          if (choiceElement != null) {
              return iterativeCreation(choiceElement, className, interfaceIndex + 1, apiName, groupName).get(0);
          }
  
          if (sequenceElement != null) {
              iterativeCreation(sequenceElement, className, interfaceIndex + 1, apiName, groupName);
          }
  
          return new InterfaceInfo(TEXT_GROUP);
      }
docs: Delegates the interface generation to one of the possible {@link XsdGroup} element children.
  @param groupName The group name of the {@link XsdGroup} element.
  @param choiceElement The child {@link XsdChoice}.
  @param allElement The child {@link XsdAll}.
  @param sequenceElement The child {@link XsdSequence}.
  @param className The className of the element which contains this group.
  @param interfaceIndex The current interface index that serves as a base to distinguish interface names.
  @param apiName The name of the generated fluent interface.
  @return A {@link InterfaceInfo} object containing relevant interface information.