From 76e5206acc04e835e13746865fe687afe0a87a2d Mon Sep 17 00:00:00 2001
From: Lonami Exo <totufals@hotmail.com>
Date: Sat, 30 Sep 2017 18:45:56 +0200
Subject: [PATCH] Raise ValueError if an unknown **kwarg is given

---
 telethon/telegram_bare_client.py | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/telethon/telegram_bare_client.py b/telethon/telegram_bare_client.py
index 75928b69..bec5d8ee 100644
--- a/telethon/telegram_bare_client.py
+++ b/telethon/telegram_bare_client.py
@@ -118,8 +118,9 @@ class TelegramBareClient:
         # Used on connection - the user may modify these and reconnect
         kwargs['app_version'] = kwargs.get('app_version', self.__version__)
         for name, value in kwargs.items():
-            if hasattr(self.session, name):
-                setattr(self.session, name, value)
+            if not hasattr(self.session, name):
+                raise ValueError('Unknown named parameter', name)
+            setattr(self.session, name, value)
 
         # Despite the state of the real connection, keep track of whether
         # the user has explicitly called .connect() or .disconnect() here.