diff --git a/sphinx/ext/autodoc/__init__.py b/sphinx/ext/autodoc/__init__.py
index eae199b33..29bfb791c 100644
--- a/sphinx/ext/autodoc/__init__.py
+++ b/sphinx/ext/autodoc/__init__.py
@@ -849,7 +849,7 @@ class ModuleDocumenter(Documenter):
         if self.options.deprecated:
             self.add_line('   :deprecated:', sourcename)
 
-    def get_object_members(self, want_all: bool) -> Tuple[bool, List[Tuple[str, object]]]:
+    def get_object_members(self, want_all: bool) -> Tuple[bool, List[Tuple[str, Any]]]:
         if want_all:
             if (self.options.ignore_module_all or not
                     hasattr(self.object, '__all__')):
diff --git a/sphinx/ext/autodoc/importer.py b/sphinx/ext/autodoc/importer.py
index 432aa0c85..cdccf710d 100644
--- a/sphinx/ext/autodoc/importer.py
+++ b/sphinx/ext/autodoc/importer.py
@@ -11,10 +11,10 @@
 import importlib
 import traceback
 import warnings
-from collections import namedtuple
-from typing import Any, Callable, Dict, List, Mapping, Tuple
+from typing import Any, Callable, Dict, List, Mapping, NamedTuple, Tuple
 
 from sphinx.deprecation import RemovedInSphinx40Warning, deprecated_alias
+from sphinx.pycode import ModuleAnalyzer
 from sphinx.util import logging
 from sphinx.util.inspect import isclass, isenumclass, safe_getattr
 
@@ -122,11 +122,13 @@ def get_module_members(module: Any) -> List[Tuple[str, Any]]:
     return sorted(list(members.values()))
 
 
-Attribute = namedtuple('Attribute', ['name', 'directly_defined', 'value'])
+Attribute = NamedTuple('Attribute', [('name', str),
+                                     ('directly_defined', bool),
+                                     ('value', Any)])
 
 
 def get_object_members(subject: Any, objpath: List[str], attrgetter: Callable,
-                       analyzer: Any = None) -> Dict[str, Attribute]:
+                       analyzer: ModuleAnalyzer = None) -> Dict[str, Attribute]:
     """Get members and attributes of target object."""
     from sphinx.ext.autodoc import INSTANCEATTR