diff --git a/lib/ansible/module_utils/compat/version.py b/lib/ansible/module_utils/compat/version.py
index 59ee9dbc013..fbd82f589a6 100644
--- a/lib/ansible/module_utils/compat/version.py
+++ b/lib/ansible/module_utils/compat/version.py
@@ -31,7 +31,7 @@ __metaclass__ = type
 import re
 
 try:
-    RE_FLAGS = re.VERBOSE | re.ASCII
+    RE_FLAGS = re.VERBOSE | re.ASCII  # type: ignore[attr-defined]
 except AttributeError:
     RE_FLAGS = re.VERBOSE
 
diff --git a/lib/ansible/module_utils/facts/ansible_collector.py b/lib/ansible/module_utils/facts/ansible_collector.py
index f8238afe314..e9bafe297c5 100644
--- a/lib/ansible/module_utils/facts/ansible_collector.py
+++ b/lib/ansible/module_utils/facts/ansible_collector.py
@@ -32,6 +32,8 @@ __metaclass__ = type
 import fnmatch
 import sys
 
+import ansible.module_utils.compat.typing as t
+
 from ansible.module_utils.facts import timeout
 from ansible.module_utils.facts import collector
 from ansible.module_utils.common.collections import is_string
@@ -104,7 +106,7 @@ class CollectorMetaDataCollector(collector.BaseFactCollector):
     '''Collector that provides a facts with the gather_subset metadata.'''
 
     name = 'gather_subset'
-    _fact_ids = set([])
+    _fact_ids = set()  # type: t.Set[str]
 
     def __init__(self, collectors=None, namespace=None, gather_subset=None, module_setup=None):
         super(CollectorMetaDataCollector, self).__init__(collectors, namespace)
diff --git a/lib/ansible/module_utils/facts/collector.py b/lib/ansible/module_utils/facts/collector.py
index 6b2a2fdda19..ac52fe8b4d3 100644
--- a/lib/ansible/module_utils/facts/collector.py
+++ b/lib/ansible/module_utils/facts/collector.py
@@ -33,6 +33,8 @@ from collections import defaultdict
 
 import platform
 
+import ansible.module_utils.compat.typing as t
+
 from ansible.module_utils.facts import timeout
 
 
@@ -56,11 +58,11 @@ class CollectorNotFoundError(KeyError):
 
 
 class BaseFactCollector:
-    _fact_ids = set()
+    _fact_ids = set()  # type: t.Set[str]
 
     _platform = 'Generic'
     name = None  # type: str | None
-    required_facts = set()
+    required_facts = set()  # type: t.Set[str]
 
     def __init__(self, collectors=None, namespace=None):
         '''Base class for things that collect facts.
diff --git a/lib/ansible/module_utils/facts/hardware/base.py b/lib/ansible/module_utils/facts/hardware/base.py
index ce7ca7e452e..846bb302320 100644
--- a/lib/ansible/module_utils/facts/hardware/base.py
+++ b/lib/ansible/module_utils/facts/hardware/base.py
@@ -29,6 +29,8 @@
 from __future__ import (absolute_import, division, print_function)
 __metaclass__ = type
 
+import ansible.module_utils.compat.typing as t
+
 from ansible.module_utils.facts.collector import BaseFactCollector
 
 
@@ -50,7 +52,7 @@ class HardwareCollector(BaseFactCollector):
                      'processor_count',
                      # TODO: mounts isnt exactly hardware
                      'mounts',
-                     'devices'])
+                     'devices'])  # type: t.Set[str]
     _fact_class = Hardware
 
     def collect(self, module=None, collected_facts=None):
diff --git a/lib/ansible/module_utils/facts/network/base.py b/lib/ansible/module_utils/facts/network/base.py
index fe38ba82d30..8243f06ccfe 100644
--- a/lib/ansible/module_utils/facts/network/base.py
+++ b/lib/ansible/module_utils/facts/network/base.py
@@ -16,6 +16,8 @@
 from __future__ import (absolute_import, division, print_function)
 __metaclass__ = type
 
+import ansible.module_utils.compat.typing as t
+
 from ansible.module_utils.facts.collector import BaseFactCollector
 
 
@@ -48,7 +50,7 @@ class NetworkCollector(BaseFactCollector):
                      'default_ipv4',
                      'default_ipv6',
                      'all_ipv4_addresses',
-                     'all_ipv6_addresses'])
+                     'all_ipv6_addresses'])  # type: t.Set[str]
 
     IPV6_SCOPE = {'0': 'global',
                   '10': 'host',
diff --git a/lib/ansible/module_utils/facts/network/fc_wwn.py b/lib/ansible/module_utils/facts/network/fc_wwn.py
index 77e015d9c92..86182f89343 100644
--- a/lib/ansible/module_utils/facts/network/fc_wwn.py
+++ b/lib/ansible/module_utils/facts/network/fc_wwn.py
@@ -21,13 +21,15 @@ __metaclass__ = type
 import sys
 import glob
 
+import ansible.module_utils.compat.typing as t
+
 from ansible.module_utils.facts.utils import get_file_lines
 from ansible.module_utils.facts.collector import BaseFactCollector
 
 
 class FcWwnInitiatorFactCollector(BaseFactCollector):
     name = 'fibre_channel_wwn'
-    _fact_ids = set()
+    _fact_ids = set()  # type: t.Set[str]
 
     def collect(self, module=None, collected_facts=None):
         """
diff --git a/lib/ansible/module_utils/facts/network/iscsi.py b/lib/ansible/module_utils/facts/network/iscsi.py
index 33b2737bd57..2bb93834236 100644
--- a/lib/ansible/module_utils/facts/network/iscsi.py
+++ b/lib/ansible/module_utils/facts/network/iscsi.py
@@ -21,6 +21,8 @@ __metaclass__ = type
 import sys
 import subprocess
 
+import ansible.module_utils.compat.typing as t
+
 from ansible.module_utils.common.process import get_bin_path
 from ansible.module_utils.facts.utils import get_file_content
 from ansible.module_utils.facts.network.base import NetworkCollector
@@ -28,7 +30,7 @@ from ansible.module_utils.facts.network.base import NetworkCollector
 
 class IscsiInitiatorNetworkCollector(NetworkCollector):
     name = 'iscsi'
-    _fact_ids = set()
+    _fact_ids = set()  # type: t.Set[str]
 
     def collect(self, module=None, collected_facts=None):
         """
diff --git a/lib/ansible/module_utils/facts/network/nvme.py b/lib/ansible/module_utils/facts/network/nvme.py
index 5111a90b4cd..febd0abb38c 100644
--- a/lib/ansible/module_utils/facts/network/nvme.py
+++ b/lib/ansible/module_utils/facts/network/nvme.py
@@ -21,13 +21,15 @@ __metaclass__ = type
 import sys
 import subprocess
 
+import ansible.module_utils.compat.typing as t
+
 from ansible.module_utils.facts.utils import get_file_content
 from ansible.module_utils.facts.network.base import NetworkCollector
 
 
 class NvmeInitiatorNetworkCollector(NetworkCollector):
     name = 'nvme'
-    _fact_ids = set()
+    _fact_ids = set()  # type: t.Set[str]
 
     def collect(self, module=None, collected_facts=None):
         """
diff --git a/lib/ansible/module_utils/facts/other/facter.py b/lib/ansible/module_utils/facts/other/facter.py
index 899fcc419b8..3f83999d419 100644
--- a/lib/ansible/module_utils/facts/other/facter.py
+++ b/lib/ansible/module_utils/facts/other/facter.py
@@ -18,6 +18,8 @@ __metaclass__ = type
 
 import json
 
+import ansible.module_utils.compat.typing as t
+
 from ansible.module_utils.facts.namespace import PrefixFactNamespace
 
 from ansible.module_utils.facts.collector import BaseFactCollector
@@ -25,7 +27,7 @@ from ansible.module_utils.facts.collector import BaseFactCollector
 
 class FacterFactCollector(BaseFactCollector):
     name = 'facter'
-    _fact_ids = set(['facter'])
+    _fact_ids = set(['facter'])  # type: t.Set[str]
 
     def __init__(self, collectors=None, namespace=None):
         namespace = PrefixFactNamespace(namespace_name='facter',
diff --git a/lib/ansible/module_utils/facts/other/ohai.py b/lib/ansible/module_utils/facts/other/ohai.py
index df292376863..90c553980b9 100644
--- a/lib/ansible/module_utils/facts/other/ohai.py
+++ b/lib/ansible/module_utils/facts/other/ohai.py
@@ -18,6 +18,8 @@ __metaclass__ = type
 
 import json
 
+import ansible.module_utils.compat.typing as t
+
 from ansible.module_utils.facts.namespace import PrefixFactNamespace
 
 from ansible.module_utils.facts.collector import BaseFactCollector
@@ -26,7 +28,7 @@ from ansible.module_utils.facts.collector import BaseFactCollector
 class OhaiFactCollector(BaseFactCollector):
     '''This is a subclass of Facts for including information gathered from Ohai.'''
     name = 'ohai'
-    _fact_ids = set()
+    _fact_ids = set()  # type: t.Set[str]
 
     def __init__(self, collectors=None, namespace=None):
         namespace = PrefixFactNamespace(namespace_name='ohai',
diff --git a/lib/ansible/module_utils/facts/system/apparmor.py b/lib/ansible/module_utils/facts/system/apparmor.py
index 53c3ed1856f..3b702f9d323 100644
--- a/lib/ansible/module_utils/facts/system/apparmor.py
+++ b/lib/ansible/module_utils/facts/system/apparmor.py
@@ -20,12 +20,14 @@ __metaclass__ = type
 
 import os
 
+import ansible.module_utils.compat.typing as t
+
 from ansible.module_utils.facts.collector import BaseFactCollector
 
 
 class ApparmorFactCollector(BaseFactCollector):
     name = 'apparmor'
-    _fact_ids = set()
+    _fact_ids = set()  # type: t.Set[str]
 
     def collect(self, module=None, collected_facts=None):
         facts_dict = {}
diff --git a/lib/ansible/module_utils/facts/system/caps.py b/lib/ansible/module_utils/facts/system/caps.py
index 5c376d5e6e8..6a1e26d527c 100644
--- a/lib/ansible/module_utils/facts/system/caps.py
+++ b/lib/ansible/module_utils/facts/system/caps.py
@@ -18,6 +18,7 @@
 from __future__ import (absolute_import, division, print_function)
 __metaclass__ = type
 
+import ansible.module_utils.compat.typing as t
 
 from ansible.module_utils._text import to_text
 from ansible.module_utils.facts.collector import BaseFactCollector
@@ -26,7 +27,7 @@ from ansible.module_utils.facts.collector import BaseFactCollector
 class SystemCapabilitiesFactCollector(BaseFactCollector):
     name = 'caps'
     _fact_ids = set(['system_capabilities',
-                     'system_capabilities_enforced'])
+                     'system_capabilities_enforced'])  # type: t.Set[str]
 
     def collect(self, module=None, collected_facts=None):
 
diff --git a/lib/ansible/module_utils/facts/system/chroot.py b/lib/ansible/module_utils/facts/system/chroot.py
index 25c61125d5d..94138a004f5 100644
--- a/lib/ansible/module_utils/facts/system/chroot.py
+++ b/lib/ansible/module_utils/facts/system/chroot.py
@@ -5,6 +5,8 @@ __metaclass__ = type
 
 import os
 
+import ansible.module_utils.compat.typing as t
+
 from ansible.module_utils.facts.collector import BaseFactCollector
 
 
@@ -41,7 +43,7 @@ def is_chroot(module=None):
 
 class ChrootFactCollector(BaseFactCollector):
     name = 'chroot'
-    _fact_ids = set(['is_chroot'])
+    _fact_ids = set(['is_chroot'])  # type: t.Set[str]
 
     def collect(self, module=None, collected_facts=None):
         return {'is_chroot': is_chroot(module)}
diff --git a/lib/ansible/module_utils/facts/system/cmdline.py b/lib/ansible/module_utils/facts/system/cmdline.py
index 1b1b71e7f7b..782186dcaf8 100644
--- a/lib/ansible/module_utils/facts/system/cmdline.py
+++ b/lib/ansible/module_utils/facts/system/cmdline.py
@@ -18,6 +18,8 @@ __metaclass__ = type
 
 import shlex
 
+import ansible.module_utils.compat.typing as t
+
 from ansible.module_utils.facts.utils import get_file_content
 
 from ansible.module_utils.facts.collector import BaseFactCollector
@@ -25,7 +27,7 @@ from ansible.module_utils.facts.collector import BaseFactCollector
 
 class CmdLineFactCollector(BaseFactCollector):
     name = 'cmdline'
-    _fact_ids = set()
+    _fact_ids = set()  # type: t.Set[str]
 
     def _get_proc_cmdline(self):
         return get_file_content('/proc/cmdline')
diff --git a/lib/ansible/module_utils/facts/system/date_time.py b/lib/ansible/module_utils/facts/system/date_time.py
index 1661042456a..481bef42bfd 100644
--- a/lib/ansible/module_utils/facts/system/date_time.py
+++ b/lib/ansible/module_utils/facts/system/date_time.py
@@ -21,12 +21,14 @@ __metaclass__ = type
 import datetime
 import time
 
+import ansible.module_utils.compat.typing as t
+
 from ansible.module_utils.facts.collector import BaseFactCollector
 
 
 class DateTimeFactCollector(BaseFactCollector):
     name = 'date_time'
-    _fact_ids = set()
+    _fact_ids = set()  # type: t.Set[str]
 
     def collect(self, module=None, collected_facts=None):
         facts_dict = {}
diff --git a/lib/ansible/module_utils/facts/system/distribution.py b/lib/ansible/module_utils/facts/system/distribution.py
index c829fc2901f..d77047fc1a2 100644
--- a/lib/ansible/module_utils/facts/system/distribution.py
+++ b/lib/ansible/module_utils/facts/system/distribution.py
@@ -10,6 +10,8 @@ import os
 import platform
 import re
 
+import ansible.module_utils.compat.typing as t
+
 from ansible.module_utils.common.sys_info import get_distribution, get_distribution_version, \
     get_distribution_codename
 from ansible.module_utils.facts.utils import get_file_content
@@ -684,7 +686,7 @@ class DistributionFactCollector(BaseFactCollector):
     _fact_ids = set(['distribution_version',
                      'distribution_release',
                      'distribution_major_version',
-                     'os_family'])
+                     'os_family'])  # type: t.Set[str]
 
     def collect(self, module=None, collected_facts=None):
         collected_facts = collected_facts or {}
diff --git a/lib/ansible/module_utils/facts/system/dns.py b/lib/ansible/module_utils/facts/system/dns.py
index bd385e9de9d..d913f4a30d4 100644
--- a/lib/ansible/module_utils/facts/system/dns.py
+++ b/lib/ansible/module_utils/facts/system/dns.py
@@ -16,6 +16,7 @@
 from __future__ import (absolute_import, division, print_function)
 __metaclass__ = type
 
+import ansible.module_utils.compat.typing as t
 
 from ansible.module_utils.facts.utils import get_file_content
 
@@ -24,7 +25,7 @@ from ansible.module_utils.facts.collector import BaseFactCollector
 
 class DnsFactCollector(BaseFactCollector):
     name = 'dns'
-    _fact_ids = set()
+    _fact_ids = set()  # type: t.Set[str]
 
     def collect(self, module=None, collected_facts=None):
         dns_facts = {}
diff --git a/lib/ansible/module_utils/facts/system/env.py b/lib/ansible/module_utils/facts/system/env.py
index 279aad61535..605443fa39d 100644
--- a/lib/ansible/module_utils/facts/system/env.py
+++ b/lib/ansible/module_utils/facts/system/env.py
@@ -18,6 +18,8 @@ __metaclass__ = type
 
 import os
 
+import ansible.module_utils.compat.typing as t
+
 from ansible.module_utils.six import iteritems
 
 from ansible.module_utils.facts.collector import BaseFactCollector
@@ -25,7 +27,7 @@ from ansible.module_utils.facts.collector import BaseFactCollector
 
 class EnvFactCollector(BaseFactCollector):
     name = 'env'
-    _fact_ids = set()
+    _fact_ids = set()  # type: t.Set[str]
 
     def collect(self, module=None, collected_facts=None):
         env_facts = {}
diff --git a/lib/ansible/module_utils/facts/system/fips.py b/lib/ansible/module_utils/facts/system/fips.py
index 20ada639f20..7e56610e1b4 100644
--- a/lib/ansible/module_utils/facts/system/fips.py
+++ b/lib/ansible/module_utils/facts/system/fips.py
@@ -18,6 +18,8 @@
 from __future__ import (absolute_import, division, print_function)
 __metaclass__ = type
 
+import ansible.module_utils.compat.typing as t
+
 from ansible.module_utils.facts.utils import get_file_content
 
 from ansible.module_utils.facts.collector import BaseFactCollector
@@ -25,7 +27,7 @@ from ansible.module_utils.facts.collector import BaseFactCollector
 
 class FipsFactCollector(BaseFactCollector):
     name = 'fips'
-    _fact_ids = set()
+    _fact_ids = set()  # type: t.Set[str]
 
     def collect(self, module=None, collected_facts=None):
         # NOTE: this is populated even if it is not set
diff --git a/lib/ansible/module_utils/facts/system/local.py b/lib/ansible/module_utils/facts/system/local.py
index e80fca9eac2..6579aae0a5b 100644
--- a/lib/ansible/module_utils/facts/system/local.py
+++ b/lib/ansible/module_utils/facts/system/local.py
@@ -21,6 +21,8 @@ import json
 import os
 import stat
 
+import ansible.module_utils.compat.typing as t
+
 from ansible.module_utils._text import to_text
 from ansible.module_utils.facts.utils import get_file_content
 from ansible.module_utils.facts.collector import BaseFactCollector
@@ -29,7 +31,7 @@ from ansible.module_utils.six.moves import configparser, StringIO
 
 class LocalFactCollector(BaseFactCollector):
     name = 'local'
-    _fact_ids = set()
+    _fact_ids = set()  # type: t.Set[str]
 
     def collect(self, module=None, collected_facts=None):
         local_facts = {}
diff --git a/lib/ansible/module_utils/facts/system/lsb.py b/lib/ansible/module_utils/facts/system/lsb.py
index 596e7256f8e..2dc1433fd06 100644
--- a/lib/ansible/module_utils/facts/system/lsb.py
+++ b/lib/ansible/module_utils/facts/system/lsb.py
@@ -20,13 +20,15 @@ __metaclass__ = type
 
 import os
 
+import ansible.module_utils.compat.typing as t
+
 from ansible.module_utils.facts.utils import get_file_lines
 from ansible.module_utils.facts.collector import BaseFactCollector
 
 
 class LSBFactCollector(BaseFactCollector):
     name = 'lsb'
-    _fact_ids = set()
+    _fact_ids = set()  # type: t.Set[str]
     STRIP_QUOTES = r'\'\"\\'
 
     def _lsb_release_bin(self, lsb_path, module):
diff --git a/lib/ansible/module_utils/facts/system/pkg_mgr.py b/lib/ansible/module_utils/facts/system/pkg_mgr.py
index 7383a7afe95..704ea2014d7 100644
--- a/lib/ansible/module_utils/facts/system/pkg_mgr.py
+++ b/lib/ansible/module_utils/facts/system/pkg_mgr.py
@@ -8,6 +8,8 @@ __metaclass__ = type
 import os
 import subprocess
 
+import ansible.module_utils.compat.typing as t
+
 from ansible.module_utils.facts.collector import BaseFactCollector
 
 # A list of dicts.  If there is a platform with more than one
@@ -44,7 +46,7 @@ PKG_MGRS = [{'path': '/usr/bin/rpm-ostree', 'name': 'atomic_container'},
 
 class OpenBSDPkgMgrFactCollector(BaseFactCollector):
     name = 'pkg_mgr'
-    _fact_ids = set()
+    _fact_ids = set()  # type: t.Set[str]
     _platform = 'OpenBSD'
 
     def collect(self, module=None, collected_facts=None):
@@ -57,7 +59,7 @@ class OpenBSDPkgMgrFactCollector(BaseFactCollector):
 # the fact ends up being 'pkg_mgr' so stick with that naming/spelling
 class PkgMgrFactCollector(BaseFactCollector):
     name = 'pkg_mgr'
-    _fact_ids = set()
+    _fact_ids = set()  # type: t.Set[str]
     _platform = 'Generic'
     required_facts = set(['distribution'])
 
diff --git a/lib/ansible/module_utils/facts/system/platform.py b/lib/ansible/module_utils/facts/system/platform.py
index beac7ccbe30..b9478015a72 100644
--- a/lib/ansible/module_utils/facts/system/platform.py
+++ b/lib/ansible/module_utils/facts/system/platform.py
@@ -20,6 +20,8 @@ import re
 import socket
 import platform
 
+import ansible.module_utils.compat.typing as t
+
 from ansible.module_utils.facts.utils import get_file_content
 
 from ansible.module_utils.facts.collector import BaseFactCollector
@@ -37,7 +39,7 @@ class PlatformFactCollector(BaseFactCollector):
                      'machine',
                      'python_version',
                      'architecture',
-                     'machine_id'])
+                     'machine_id'])  # type: t.Set[str]
 
     def collect(self, module=None, collected_facts=None):
         platform_facts = {}
diff --git a/lib/ansible/module_utils/facts/system/python.py b/lib/ansible/module_utils/facts/system/python.py
index 172a0913ae2..50b66dde3e4 100644
--- a/lib/ansible/module_utils/facts/system/python.py
+++ b/lib/ansible/module_utils/facts/system/python.py
@@ -18,6 +18,8 @@ __metaclass__ = type
 
 import sys
 
+import ansible.module_utils.compat.typing as t
+
 from ansible.module_utils.facts.collector import BaseFactCollector
 
 try:
@@ -32,7 +34,7 @@ except ImportError:
 
 class PythonFactCollector(BaseFactCollector):
     name = 'python'
-    _fact_ids = set()
+    _fact_ids = set()  # type: t.Set[str]
 
     def collect(self, module=None, collected_facts=None):
         python_facts = {}
diff --git a/lib/ansible/module_utils/facts/system/selinux.py b/lib/ansible/module_utils/facts/system/selinux.py
index d3aa89ded2e..5c6b012bb30 100644
--- a/lib/ansible/module_utils/facts/system/selinux.py
+++ b/lib/ansible/module_utils/facts/system/selinux.py
@@ -18,6 +18,8 @@
 from __future__ import (absolute_import, division, print_function)
 __metaclass__ = type
 
+import ansible.module_utils.compat.typing as t
+
 from ansible.module_utils.facts.collector import BaseFactCollector
 
 try:
@@ -35,7 +37,7 @@ SELINUX_MODE_DICT = {
 
 class SelinuxFactCollector(BaseFactCollector):
     name = 'selinux'
-    _fact_ids = set()
+    _fact_ids = set()  # type: t.Set[str]
 
     def collect(self, module=None, collected_facts=None):
         facts_dict = {}
diff --git a/lib/ansible/module_utils/facts/system/service_mgr.py b/lib/ansible/module_utils/facts/system/service_mgr.py
index 1ca3cce59f6..d862ac90b54 100644
--- a/lib/ansible/module_utils/facts/system/service_mgr.py
+++ b/lib/ansible/module_utils/facts/system/service_mgr.py
@@ -22,6 +22,8 @@ import os
 import platform
 import re
 
+import ansible.module_utils.compat.typing as t
+
 from ansible.module_utils._text import to_native
 
 from ansible.module_utils.facts.utils import get_file_content
@@ -37,7 +39,7 @@ if platform.system() != 'SunOS':
 
 class ServiceMgrFactCollector(BaseFactCollector):
     name = 'service_mgr'
-    _fact_ids = set()
+    _fact_ids = set()  # type: t.Set[str]
     required_facts = set(['platform', 'distribution'])
 
     @staticmethod
diff --git a/lib/ansible/module_utils/facts/system/ssh_pub_keys.py b/lib/ansible/module_utils/facts/system/ssh_pub_keys.py
index 7c9bcb377d2..85691c73c85 100644
--- a/lib/ansible/module_utils/facts/system/ssh_pub_keys.py
+++ b/lib/ansible/module_utils/facts/system/ssh_pub_keys.py
@@ -16,6 +16,8 @@
 from __future__ import (absolute_import, division, print_function)
 __metaclass__ = type
 
+import ansible.module_utils.compat.typing as t
+
 from ansible.module_utils.facts.utils import get_file_content
 
 from ansible.module_utils.facts.collector import BaseFactCollector
@@ -27,7 +29,7 @@ class SshPubKeyFactCollector(BaseFactCollector):
                      'ssh_host_key_dsa_public',
                      'ssh_host_key_rsa_public',
                      'ssh_host_key_ecdsa_public',
-                     'ssh_host_key_ed25519_public'])
+                     'ssh_host_key_ed25519_public'])  # type: t.Set[str]
 
     def collect(self, module=None, collected_facts=None):
         ssh_pub_key_facts = {}
diff --git a/lib/ansible/module_utils/facts/system/user.py b/lib/ansible/module_utils/facts/system/user.py
index 35a07759950..2efa9935c4f 100644
--- a/lib/ansible/module_utils/facts/system/user.py
+++ b/lib/ansible/module_utils/facts/system/user.py
@@ -20,6 +20,8 @@ import getpass
 import os
 import pwd
 
+import ansible.module_utils.compat.typing as t
+
 from ansible.module_utils.facts.collector import BaseFactCollector
 
 
@@ -28,7 +30,7 @@ class UserFactCollector(BaseFactCollector):
     _fact_ids = set(['user_id', 'user_uid', 'user_gid',
                      'user_gecos', 'user_dir', 'user_shell',
                      'real_user_id', 'effective_user_id',
-                     'effective_group_ids'])
+                     'effective_group_ids'])  # type: t.Set[str]
 
     def collect(self, module=None, collected_facts=None):
         user_facts = {}
diff --git a/lib/ansible/module_utils/facts/virtual/base.py b/lib/ansible/module_utils/facts/virtual/base.py
index cb725b6ac88..67b59a5503a 100644
--- a/lib/ansible/module_utils/facts/virtual/base.py
+++ b/lib/ansible/module_utils/facts/virtual/base.py
@@ -19,6 +19,8 @@
 from __future__ import (absolute_import, division, print_function)
 __metaclass__ = type
 
+import ansible.module_utils.compat.typing as t
+
 from ansible.module_utils.facts.collector import BaseFactCollector
 
 
@@ -63,7 +65,7 @@ class VirtualCollector(BaseFactCollector):
         'virtualization_role',
         'virtualization_tech_guest',
         'virtualization_tech_host',
-    ])
+    ])  # type: t.Set[str]
 
     def collect(self, module=None, collected_facts=None):
         collected_facts = collected_facts or {}
diff --git a/lib/ansible/module_utils/urls.py b/lib/ansible/module_utils/urls.py
index d224f9e7f3d..f34c5368904 100644
--- a/lib/ansible/module_utils/urls.py
+++ b/lib/ansible/module_utils/urls.py
@@ -68,6 +68,7 @@ except ImportError:
     # Python 3
     import http.client as httplib  # type: ignore[no-redef]
 
+import ansible.module_utils.compat.typing as t
 import ansible.module_utils.six.moves.http_cookiejar as cookiejar
 import ansible.module_utils.six.moves.urllib.error as urllib_error
 
@@ -86,7 +87,7 @@ except ImportError:
     import urllib2 as urllib_request  # type: ignore[no-redef]
     from urllib2 import AbstractHTTPHandler, BaseHandler  # type: ignore[no-redef]
 
-urllib_request.HTTPRedirectHandler.http_error_308 = urllib_request.HTTPRedirectHandler.http_error_307
+urllib_request.HTTPRedirectHandler.http_error_308 = urllib_request.HTTPRedirectHandler.http_error_307  # type: ignore[attr-defined]
 
 try:
     from ansible.module_utils.six.moves.urllib.parse import urlparse, urlunparse, unquote
@@ -160,7 +161,7 @@ if not HAS_SSLCONTEXT and HAS_SSL:
 # The bundled backports.ssl_match_hostname should really be moved into its own file for processing
 _BUNDLED_METADATA = {"pypi_name": "backports.ssl_match_hostname", "version": "3.7.0.1"}
 
-LOADED_VERIFY_LOCATIONS = set()
+LOADED_VERIFY_LOCATIONS = set()  # type: t.Set[str]
 
 HAS_MATCH_HOSTNAME = True
 try: