code: async def create_scene_member(self, shade_position, scene_id, shade_id):
          
  
          data = {
              ATTR_SCENE_MEMBER: {
                  ATTR_POSITION_DATA: shade_position,
                  ATTR_SCENE_ID: scene_id,
                  ATTR_SHADE_ID: shade_id,
              }
          }
          return await self.request.post(self._base_path, data=data)
docs: Adds a shade to an existing scene