diff --git a/superset/dashboards/filter_state/commands/get.py b/superset/dashboards/filter_state/commands/get.py
index d95f6b0b94ec..3087389cc5a2 100644
--- a/superset/dashboards/filter_state/commands/get.py
+++ b/superset/dashboards/filter_state/commands/get.py
@@ -24,13 +24,13 @@
 
 
 class GetFilterStateCommand(GetKeyValueCommand):
-    def get(self, resource_id: int, key: str, refreshTimeout: bool) -> Optional[str]:
+    def get(self, resource_id: int, key: str, refresh_timeout: bool) -> Optional[str]:
         dashboard = DashboardDAO.get_by_id_or_slug(str(resource_id))
         if dashboard:
             entry: Entry = cache_manager.filter_state_cache.get(
                 cache_key(resource_id, key)
             )
-            if refreshTimeout:
+            if refresh_timeout:
                 cache_manager.filter_state_cache.set(key, entry)
             return entry["value"]
         return None
diff --git a/superset/key_value/__init__.py b/superset/key_value/__init__.py
new file mode 100644
index 000000000000..13a83393a912
--- /dev/null
+++ b/superset/key_value/__init__.py
@@ -0,0 +1,16 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
diff --git a/superset/key_value/commands/get.py b/superset/key_value/commands/get.py
index be56050fa063..43a5806cb595 100644
--- a/superset/key_value/commands/get.py
+++ b/superset/key_value/commands/get.py
@@ -38,8 +38,8 @@ def __init__(self, actor: User, resource_id: int, key: str):
     def run(self) -> Model:
         try:
             config = app.config["FILTER_STATE_CACHE_CONFIG"]
-            refreshTimeout = config.get("REFRESH_TIMEOUT_ON_RETRIEVAL")
-            return self.get(self._resource_id, self._key, refreshTimeout)
+            refresh_timeout = config.get("REFRESH_TIMEOUT_ON_RETRIEVAL")
+            return self.get(self._resource_id, self._key, refresh_timeout)
         except SQLAlchemyError as ex:
             logger.exception("Error running get command")
             raise KeyValueGetFailedError() from ex
@@ -48,5 +48,5 @@ def validate(self) -> None:
         pass
 
     @abstractmethod
-    def get(self, resource_id: int, key: str, refreshTimeout: bool) -> Optional[str]:
+    def get(self, resource_id: int, key: str, refresh_timeout: bool) -> Optional[str]:
         ...