bpo-39481: PEP 585 for ipaddress.py (GH-19418)

diff --git a/Lib/test/test_genericalias.py b/Lib/test/test_genericalias.py
index d8acdee..535c249 100644
--- a/Lib/test/test_genericalias.py
+++ b/Lib/test/test_genericalias.py
@@ -7,6 +7,7 @@
 )
 from collections.abc import *
 from contextlib import AbstractContextManager, AbstractAsyncContextManager
+from ipaddress import IPv4Network, IPv4Interface, IPv6Network, IPv6Interface
 from itertools import chain
 from os import DirEntry
 from re import Pattern, Match
@@ -36,6 +37,9 @@
                   Mapping, MutableMapping, MappingView,
                   KeysView, ItemsView, ValuesView,
                   Sequence, MutableSequence,
+                  MappingProxyType,
+                  DirEntry,
+                  IPv4Network, IPv4Interface, IPv6Network, IPv6Interface,
                   MappingProxyType, DirEntry,
                   chain,
                   ):