Add scan_interval support for NUT integration (#31167)

* Added scan_interval support

* Changed to config[key] for required keys and optional keys with default value

* Removed usage of Throttle

homeassistant/components/nut/sensor.py

@@ -24,7 +24,6 @@ from homeassistant.const import (
 from homeassistant.exceptions import PlatformNotReady
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
-from homeassistant.util import Throttle
 
 _LOGGER = logging.getLogger(__name__)
 
@@ -35,7 +34,7 @@ DEFAULT_PORT = 3493
 KEY_STATUS = "ups.status"
 KEY_STATUS_DISPLAY = "ups.status.display"
 
-MIN_TIME_BETWEEN_UPDATES = timedelta(seconds=60)
+SCAN_INTERVAL = timedelta(seconds=60)
 
 SENSOR_TYPES = {
     "ups.status.display": ["Status", "", "mdi:information-outline"],
@@ -166,9 +165,10 @@ PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend(
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
     """Set up the NUT sensors."""
-    name = config.get(CONF_NAME)
-    host = config.get(CONF_HOST)
-    port = config.get(CONF_PORT)
+    name = config[CONF_NAME]
+    host = config[CONF_HOST]
+    port = config[CONF_PORT]
+
     alias = config.get(CONF_ALIAS)
     username = config.get(CONF_USERNAME)
     password = config.get(CONF_PASSWORD)
@@ -325,7 +325,6 @@ class PyNUTData:
             _LOGGER.debug("Error getting NUT vars for host %s: %s", self._host, err)
             return None
 
-    @Throttle(MIN_TIME_BETWEEN_UPDATES)
     def update(self, **kwargs):
         """Fetch the latest status from NUT."""
         self._status = self._get_status()