diff --git a/github/client.py b/github/client.py
index 8dff559..5480ff8 100644
--- a/github/client.py
+++ b/github/client.py
@@ -1,8 +1,6 @@
 # == main.py ==#
 from __future__ import annotations
 
-__all__ = ("GHClient",)
-
 import functools
 import aiohttp
 
@@ -15,6 +13,7 @@ from typing import (
     Dict,
     Generator,
     Optional,
+    Tuple,
     Union,
     List,
     overload,
@@ -27,6 +26,7 @@ from .cache import ObjectCache
 from .http import http
 from .objects import Gist, Issue, Organization, Repository, User, File
 
+__all__: Tuple[str, ...] = ('GHClient',)
 
 T = TypeVar('T')
 P = ParamSpec('P')
diff --git a/github/exceptions.py b/github/exceptions.py
index 7aff10b..2399812 100644
--- a/github/exceptions.py
+++ b/github/exceptions.py
@@ -1,10 +1,11 @@
 # == exceptions.py ==#
 
 import datetime
+from typing import Tuple
 
 from aiohttp import ClientResponse
 
-__all__ = (
+__all__: Tuple[str, ...] = (
     'APIError',
     'HTTPException',
     'ClientException',
diff --git a/github/http.py b/github/http.py
index a6257f3..5b6879b 100644
--- a/github/http.py
+++ b/github/http.py
@@ -6,7 +6,7 @@ import json
 import re
 from datetime import datetime
 from types import SimpleNamespace
-from typing import Dict, NamedTuple, Optional, Type, Union, List
+from typing import Dict, NamedTuple, Optional, Type, Tuple, Union, List
 from typing_extensions import TypeAlias
 import platform
 
@@ -18,7 +18,7 @@ from .objects import User, Gist, Repository, File
 from .urls import *
 from . import __version__
 
-__all__ = (
+__all__: Tuple[str, ...] = (
     'Paginator',
     'http',
 )
diff --git a/github/objects.py b/github/objects.py
index 9fb5ed8..fec1f2f 100644
--- a/github/objects.py
+++ b/github/objects.py
@@ -10,7 +10,7 @@ from datetime import datetime
 import io
 import os
 
-__all__ = (
+__all__: Tuple[str, ...] = (
     'APIObject',
     'dt_formatter',
     'repr_dt',