Move imports to top for swiss_hydrological_data (#29227)

homeassistant/components/swiss_hydrological_data/sensor.py

@@ -2,6 +2,7 @@
 from datetime import timedelta
 import logging
 
+from swisshydrodata import SwissHydroData
 import voluptuous as vol
 
 from homeassistant.components.sensor import PLATFORM_SCHEMA
@@ -167,7 +168,6 @@ class HydrologicalData:
     @Throttle(MIN_TIME_BETWEEN_UPDATES)
     def update(self):
         """Get the latest data."""
-        from swisshydrodata import SwissHydroData
 
         shd = SwissHydroData()
         self.data = shd.get_station(self.station)