diff --git a/aiogoogle/__init__.py b/aiogoogle/__init__.py
index 153fcaf..69069b9 100644
--- a/aiogoogle/__init__.py
+++ b/aiogoogle/__init__.py
@@ -12,11 +12,17 @@
     __license__,
     __copyright__,
 )
-from .client import Aiogoogle  # noqa: F401  imported but unused
-from .resource import GoogleAPI  # noqa: F401  imported but unused
+from .client import Aiogoogle, __all__ as _client_all  # noqa: F401  imported but unused
+from .resource import GoogleAPI, __all__ as _resource_all  # noqa: F401  imported but unused
 from .excs import (  # noqa: F401  imported but unused
     AiogoogleError,
     AuthError,
     HTTPError,
     ValidationError,
+    __all__ as _exception_all
 )
+
+
+__all__.extend(_client_all)
+__all__.extend(_resource_all)
+__all__.extend(_exception_all)
diff --git a/aiogoogle/excs.py b/aiogoogle/excs.py
index 467406a..57a15d2 100644
--- a/aiogoogle/excs.py
+++ b/aiogoogle/excs.py
@@ -1,3 +1,6 @@
+__all__ = ["AiogoogleError", "ValidationError", "HTTPError", "AuthError"]
+
+
 class AiogoogleError(Exception):
     pass
 
diff --git a/tests/ALL_APIS.py b/tests/ALL_APIS.py
index 6b81bf3..b1fb295 100644
--- a/tests/ALL_APIS.py
+++ b/tests/ALL_APIS.py
@@ -95,7 +95,6 @@
  ('recommender', 'v1'),
  ('redis', 'v1'),
  ('reseller', 'v1'),
- ('run', 'v1'),
  ('runtimeconfig', 'v1'),
  ('safebrowsing', 'v4'),
  ('script', 'v1'),
@@ -127,7 +126,6 @@
  ('videointelligence', 'v1'),
  ('vision', 'v1'),
  ('webfonts', 'v1'),
- ('webmasters', 'v3'),
  ('websecurityscanner', 'v1'),
  ('youtube', 'v3'),
  ('youtubeAnalytics', 'v2'),
diff --git a/tox.ini b/tox.ini
index da3fbce..7944fa4 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist=py36,py37,py38
+envlist=py36,py37,py38,py39,py310
 
 [testenv]
 deps =