async def METHOD_NAME(self) -> None:
    query_results_count = await ohsome_client.query(self.topic, self.feature)
    self.area_sqkm = calculate_area(self.feature) / (1000 * 1000)
    self.count = query_results_count["result"][0]["value"]
    timestamp = query_results_count["result"][0]["timestamp"]
    self.result.timestamp_osm = dateutil.parser.isoparse(timestamp)