diff --git a/fastapi_admin/depends.py b/fastapi_admin/depends.py
index be801c1..07140e6 100644
--- a/fastapi_admin/depends.py
+++ b/fastapi_admin/depends.py
@@ -139,7 +139,7 @@ class HasPermission:
 
     async def __call__(self, resource: str = Path(...), user=Depends(get_current_user)):
         if not app.permission or user.is_superuser:
-            return True #Hmm. Should superuser really cirumvent all permission checks. not a good practice!?!?!?!!?!!!
+            return True  # Hmm. Should superuser really cirumvent all permission checks. not a good practice!?!?!?!!?!!!
         if not user.is_active:
             return False
         has_permission = False
@@ -154,4 +154,4 @@ class HasPermission:
 has_read_permission = HasPermission(action=enums.PermissionAction.read)
 has_create_permission = HasPermission(action=enums.PermissionAction.create)
 has_update_permission = HasPermission(action=enums.PermissionAction.update)
-has_delete_permission = HasPermission(action=enums.PermissionAction.delete)
\ No newline at end of file
+has_delete_permission = HasPermission(action=enums.PermissionAction.delete)
diff --git a/fastapi_admin/routes/rest.py b/fastapi_admin/routes/rest.py
index 3473299..c1eb082 100644
--- a/fastapi_admin/routes/rest.py
+++ b/fastapi_admin/routes/rest.py
@@ -20,18 +20,17 @@ from ..depends import (
     admin_log_update,
     create_checker,
     delete_checker,
+    get_current_user,
     get_model,
     get_query,
+    has_create_permission,
+    has_delete_permission,
+    has_read_permission,
+    has_update_permission,
     parse_body,
     read_checker,
     update_checker,
-    has_create_permission,
-    has_read_permission,
-    has_update_permission,
-    has_delete_permission,
-    get_current_user,
 )
-
 from ..factory import app
 from ..filters import get_filter_by_name
 from ..responses import GetManyOut
@@ -129,13 +128,14 @@ async def form(resource: str,):
 
 
 @router.get("/{resource}/grid", dependencies=[Depends(read_checker)])
-async def grid(resource: str,user=Depends(get_current_user)):
+async def grid(resource: str, user=Depends(get_current_user)):
     resource = await app.get_resource(resource)
     resource = resource.dict(by_alias=True, exclude_unset=True)
-    resource['fields']['_actions'] = \
-        {'delete': await has_delete_permission(resource, user),
-         'edit': await has_update_permission(resource, user),
-         'toolbar': {'create': await has_create_permission(resource, user)}}
+    resource["fields"]["_actions"] = {
+        "delete": await has_delete_permission(resource, user),
+        "edit": await has_update_permission(resource, user),
+        "toolbar": {"create": await has_create_permission(resource, user)},
+    }
     return resource
 
 
diff --git a/fastapi_admin/site.py b/fastapi_admin/site.py
index 53e3b5b..ebb2b9b 100644
--- a/fastapi_admin/site.py
+++ b/fastapi_admin/site.py
@@ -58,6 +58,7 @@ class Site(BaseModel):
     header: Optional[str]
     page_header: Optional[str]
 
+
 class Field(BaseModel):
     label: str
     cols: Optional[int]