diff --git a/freqtrade/rpc/api_server/api_schemas.py b/freqtrade/rpc/api_server/api_schemas.py
index 984507d99..1c49d4d0a 100644
--- a/freqtrade/rpc/api_server/api_schemas.py
+++ b/freqtrade/rpc/api_server/api_schemas.py
@@ -638,6 +638,7 @@ class Health(BaseModel):
     bot_startup: datetime | None = None
     bot_startup_ts: int | None = None
 
+
 class ListCustomData(BaseModel):
     trade_id: int
     custom_data: list[dict[str, Any]]
diff --git a/freqtrade/rpc/api_server/api_v1.py b/freqtrade/rpc/api_server/api_v1.py
index f4838afb1..89f632972 100644
--- a/freqtrade/rpc/api_server/api_v1.py
+++ b/freqtrade/rpc/api_server/api_v1.py
@@ -510,6 +510,7 @@ def sysinfo():
 def health(rpc: RPC = Depends(get_rpc)):
     return rpc.health()
 
+
 @router.get("/trades/open/custom-data", response_model=list[ListCustomData], tags=["info"])
 def list_open_trades_custom_data(rpc: RPC = Depends(get_rpc)):
     """
@@ -517,6 +518,7 @@ def list_open_trades_custom_data(rpc: RPC = Depends(get_rpc)):
     """
     return rpc._rpc_list_custom_data()
 
+
 @router.get("/trades/{trade_id}/custom-data", response_model=list[ListCustomData], tags=["info"])
 def list_custom_data(trade_id: int, rpc: RPC = Depends(get_rpc)):
     """
diff --git a/freqtrade/rpc/rpc.py b/freqtrade/rpc/rpc.py
index 680f4995f..9b68b6928 100644
--- a/freqtrade/rpc/rpc.py
+++ b/freqtrade/rpc/rpc.py
@@ -1117,12 +1117,13 @@ class RPC:
             }
 
     def _rpc_list_custom_data(
-        self, trade_id: int | None = None, key: str | None = None) -> list[dict[str, Any]]:
+        self, trade_id: int | None = None, key: str | None = None
+    ) -> list[dict[str, Any]]:
         """
         Fetch custom data for a specific trade, or all open trades if `trade_id` is not provided.
         """
         if trade_id is None:
-            #get all open trades
+            # get all open trades
             trades = Trade.get_open_trades()
         else:
             trades = Trade.get_trades(trade_filter=[Trade.id == trade_id]).all()