Bug 1790816 - Reformat netwerk/ with isort. r=necko-reviewers,kershaw DONTBUILD

# ignore-this-changeset

Differential Revision: https://phabricator.services.mozilla.com/D162659

netwerk/test/perf/hooks_throttling.py

@@ -5,17 +5,16 @@
 Drives the throttling feature when the test calls our
 controlled server.
 """
-import time
 import http.client
-import os
 import json
-from urllib.parse import urlparse
+import os
 import sys
+import time
+from urllib.parse import urlparse
 
 from mozperftest.test.browsertime import add_option
 from mozperftest.utils import get_tc_secret
 
-
 ENDPOINTS = {
     "linux": "h3.dev.mozaws.net",
     "darwin": "h3.mac.dev.mozaws.net",