code: def create_effect(self, label: str, name: str, *args, **kwargs) -> Effect:
          
          effect_cls = effects.find_effect_class(name)
          effect = effect_cls(*args, **kwargs)
          effect._label = label
  
          if label in self._effects:
              raise ValueError("An effect with label '{}' already exists".format(label))
  
          self._effects[label] = effect
  
          return effect
docs: Create an effect instance adding it to the internal effects dictionary using the label as key.
  
          Args:
              label (str): The unique label for the effect instance
              name (str): Name or full python path to the effect class we want to instantiate
              args: Positional arguments to the effect initializer
              kwargs: Keyword arguments to the effect initializer
  
          Returns:
              The newly created Effect instance