diff --git a/cefi/handler/client.py b/cefi/handler/client.py
index 2998dab6..56069a57 100644
--- a/cefi/handler/client.py
+++ b/cefi/handler/client.py
@@ -168,7 +168,8 @@ async def calculate_pnl(self, period=None):
         Calculate the PnL for a given period.
 
         Parameters:
-            period (str): The period for which to calculate PnL ('W', 'M', 'Y', or None).
+            period (str): The period for which
+            to calculate PnL ('W', 'M', 'Y', or None).
 
         Returns:
             pnl: The calculated PnL value.