Move imports to top for rocketchat (#29288)

homeassistant/components/rocketchat/notify.py

@@ -1,16 +1,20 @@
 """Rocket.Chat notification service."""
 import logging
 
+from rocketchat_API.APIExceptions.RocketExceptions import (
+    RocketAuthenticationException,
+    RocketConnectionException,
+)
+from rocketchat_API.rocketchat import RocketChat
 import voluptuous as vol
 
-from homeassistant.const import CONF_PASSWORD, CONF_ROOM, CONF_URL, CONF_USERNAME
-import homeassistant.helpers.config_validation as cv
-
 from homeassistant.components.notify import (
     ATTR_DATA,
     PLATFORM_SCHEMA,
     BaseNotificationService,
 )
+from homeassistant.const import CONF_PASSWORD, CONF_ROOM, CONF_URL, CONF_USERNAME
+import homeassistant.helpers.config_validation as cv
 
 _LOGGER = logging.getLogger(__name__)
 
@@ -27,10 +31,6 @@ PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend(
 
 def get_service(hass, config, discovery_info=None):
     """Return the notify service."""
-    from rocketchat_API.APIExceptions.RocketExceptions import (
-        RocketConnectionException,
-        RocketAuthenticationException,
-    )
 
     username = config.get(CONF_USERNAME)
     password = config.get(CONF_PASSWORD)
@@ -54,7 +54,6 @@ class RocketChatNotificationService(BaseNotificationService):
 
     def __init__(self, url, username, password, room):
         """Initialize the service."""
-        from rocketchat_API.rocketchat import RocketChat
 
         self._room = room
         self._server = RocketChat(username, password, server_url=url)