docs: def destroy_all_models_in_dict(target_dict):
          """ Method runs the prepare destruction method of models 
              which are assumed in list or tuple as values within a dict
          """
          if target_dict:
              for model_list in target_dict.values():
                  if isinstance(model_list, (list, tuple)):
                      for model in model_list:
                          model.prepare_destruction()
                          if model._parent:
                              model._parent = None
                  else:
                      raise Exception("wrong data in clipboard")