async def async_copy_schedule(self, source_entity_id: str) -> None:
        """Copy a schedule from this entity to another."""
        if source_climate_data_point := cast(
            BaseCustomDpClimate,
            self._data_point.device.central.get_data_point_by_custom_id(custom_id=source_entity_id),
        ):
            await source_climate_data_point.copy_schedule(target_climate_data_point=self._data_point)
Copy a schedule from this entity to another.
custom_components/homematicip_local/climate.py