code: def _create(cls, model_class, *args, **kwargs):
          
          manager = cls._get_manager(model_class)
  
          return manager.create_user(*args, **kwargs)
docs: Create a new user instance.
  
          Args:
              model_class:
                  The type of model to create an instance of.
              args:
                  Positional arguments to create the instance with.
              kwargs:
                  Keyword arguments to create the instance with.
  
          Returns:
              A new user instance of the type specified by
              ``model_class``.