code: def create(self, **kwargs):
          
          if self.created:
              raise RuntimeError(
                  '{} already created.'.format(self.__model_type__.__name__))
  
          kwargs = self.merge_kwargs(self._create_kwargs, kwargs)
  
          self._inner = self.helper.create(
              self.name, *self._create_args, **kwargs)
docs: Create an instance of this resource definition.
  
          Only one instance may exist at any given time.