docs: async def add_shade_to_scene(self, shade_id, scene_id, position=None):
          """Add a shade to a scene."""
          if position is None:
              _shade = await self.get_shade(shade_id)
              position = await _shade.get_current_position()
  
          await (SceneMembers(self.request)).create_scene_member(
              position, scene_id, shade_id
          )