code: def set_effect(self, effect_name: str):
          
          try:
              effect_index = self._light_effect_list.index(effect_name)
          except ValueError:
              LOG.error("Trying to set unknown light effect")
              return False
  
          return self.setValue(key="PROGRAM", channel=self._effect_channel, value=effect_index)
docs: Sets the color change program of the light.