fix: formatting and imports

ohsome/clients.py

@@ -7,7 +7,6 @@
 from pathlib import Path
 from typing import Union, Optional, List
 from urllib.parse import urljoin
-import datetime as dt
 
 import geopandas as gpd
 import pandas as pd

ohsome/test/test_client.py

@@ -17,7 +17,6 @@
 logger = logging.getLogger(__name__)
 
 
-
 def test_start_end_time_is_datetime(base_client):
     """Test if the start_ end end_timestamp is in datetime format without timezone."""
     assert isinstance(base_client.start_timestamp, dt.datetime)