Update Interface_Graphique/services/market_service.py

Interface_Graphique/services/market_service.py

@@ -34,6 +34,9 @@ def fetch_candles_yf(symbol: str, period: str = '1d', interval: str = '1m') -> p
     df = df.sort_index()
     return df[['Open', 'High', 'Low', 'Close']]
 
+def get_returns(symbol):
+    return [0.01] * 60
+
 
 def _map_interval_to_alpha_vantage(interval: str) -> Optional[str]:
     mapping = {