From 54e45498367485d44ed6f886c50feb269a26c9e5 Mon Sep 17 00:00:00 2001
From: "Jason R. Coombs" <jaraco@jaraco.com>
Date: Sun, 29 Nov 2020 16:30:13 -0500
Subject: [PATCH] Satisfy type check in test_helper.FakeClient.

---
 src/allmydata/test/test_helper.py | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/allmydata/test/test_helper.py b/src/allmydata/test/test_helper.py
index 65c07135a..3faffbe0d 100644
--- a/src/allmydata/test/test_helper.py
+++ b/src/allmydata/test/test_helper.py
@@ -19,6 +19,12 @@ from functools import (
 )
 import attr
 
+try:
+    from typing import List
+    from allmydata.introducer.client import IntroducerClient
+except ImportError:
+    pass
+
 from twisted.internet import defer
 from twisted.trial import unittest
 from twisted.application import service
@@ -125,7 +131,7 @@ class FakeCHKCheckerAndUEBFetcher(object):
         ))
 
 class FakeClient(service.MultiService):
-    introducer_clients = []
+    introducer_clients = []  # type: List[IntroducerClient]
     DEFAULT_ENCODING_PARAMETERS = {"k":25,
                                    "happy": 75,
                                    "n": 100,