diff --git a/schwab_api/authentication.py b/schwab_api/authentication.py
index d8df603..5d6c526 100644
--- a/schwab_api/authentication.py
+++ b/schwab_api/authentication.py
@@ -15,9 +15,8 @@
 
 class SessionManager:
     def __init__(self) -> None:
-        """ This class can be used in synchonous or asynchonous mode. Some cloud services may require to use Playwright in asynchonous mode.
-        :type async: boolean
-        :param async: authentification in synchonous or asynchonous mode.
+        """ 
+        This class is using asynchonous playwright mode. 
         """
         self.headers = None
         self.session = requests.Session()