From 6ed4e3160bb61f3d916d3b3cf5e005f1210c9d45 Mon Sep 17 00:00:00 2001
From: vegeta1k95 <32207817+vegeta1k95@users.noreply.github.com>
Date: Sun, 8 Apr 2018 19:46:46 +0300
Subject: [PATCH] Added support for saving Event state

---
 telethon/tl/tlobject.py | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/telethon/tl/tlobject.py b/telethon/tl/tlobject.py
index 22b219a5..57975ec3 100644
--- a/telethon/tl/tlobject.py
+++ b/telethon/tl/tlobject.py
@@ -10,12 +10,23 @@ class TLObject:
 
         # These should be overrode
         self.content_related = False  # Only requests/functions/queries are
+        
+        # Internal parameter to tell pickler in which state Event object was
+        self._event_is_set = False 
         self._set_event()
 
     def _set_event(self):
         self.confirm_received = Event()
+        
+        # Set Event state to 'set' if needed
+        if self._event_is_set:
+            self.confirm_received.set()
 
     def __getstate__(self):
+        # Save state of the Event object 
+        self._event_is_set = self.confirm_received.is_set()
+        
+        # Exclude Event object from dict and return new state
         new_dct = dict(self.__dict__)
         del new_dct["confirm_received"]
         return new_dct