diff --git a/google/cloud/storage/acl.py b/google/cloud/storage/acl.py
index 4458966ce..1ca78f258 100644
--- a/google/cloud/storage/acl.py
+++ b/google/cloud/storage/acl.py
@@ -137,7 +137,6 @@ class ACL(object):
 
     # Subclasses must override to provide these attributes (typically,
     # as properties).
-    client = None
     reload_path = None
     save_path = None
     user_project = None
diff --git a/google/cloud/storage/client.py b/google/cloud/storage/client.py
index 7df60c306..bec5da9a3 100644
--- a/google/cloud/storage/client.py
+++ b/google/cloud/storage/client.py
@@ -147,7 +147,7 @@ def __init__(
         kw_args["api_endpoint"] = storage_host if _is_emulator_set else None
 
         if client_options:
-            if type(client_options) == dict:
+            if isinstance(client_options, dict):
                 client_options = google.api_core.client_options.from_dict(
                     client_options
                 )
diff --git a/tests/unit/test_transfer_manager.py b/tests/unit/test_transfer_manager.py
index bdfd236b5..685f48579 100644
--- a/tests/unit/test_transfer_manager.py
+++ b/tests/unit/test_transfer_manager.py
@@ -192,7 +192,7 @@ def test_upload_many_suppresses_412_with_skip_if_exists():
         worker_type=transfer_manager.THREAD,
     )
     for result in results:
-        assert type(result) == exceptions.PreconditionFailed
+        assert isinstance(result, exceptions.PreconditionFailed)
 
 
 def test_upload_many_with_processes():