Update apihelper.py

telebot/apihelper.py

@@ -1,5 +1,4 @@
 # -*- coding: utf-8 -*-
-import copy
 import time
 from datetime import datetime
 
@@ -90,7 +89,7 @@ def _make_request(token, method_name, method='get', params=None, files=None):
     connect_timeout = CONNECT_TIMEOUT
 
     if files:
-        files_copy = copy.deepcopy(files)
+        files_copy = dict(files)
         # process types.InputFile
         for key, value in files_copy.items():
             if isinstance(value, types.InputFile):