Fix typos and add the URL_INVALID error

telethon/tl/custom/draft.py

@@ -78,7 +78,7 @@ class Draft:
         if not self.entity and await self.get_input_entity():
             try:
                 self._entity =\
-                    self._client.get_entity(self._input_entity)
+                    await self._client.get_entity(self._input_entity)
             except ValueError:
                 pass
 

telethon_examples/assistant.py

@@ -180,7 +180,7 @@ async def handler(event):
         reply_to=event.reply_to_msg_id
     )
 
-    # We have two @client.on, both could fire, stop stop that
+    # We have two @client.on, both could fire, stop that
     raise events.StopPropagation
 
 

telethon_generator/data/error_descriptions

@@ -66,3 +66,4 @@ FLOOD_WAIT_X=A wait of {} seconds is required
 FLOOD_TEST_PHONE_WAIT_X=A wait of {} seconds is required in the test servers
 TAKEOUT_INIT_DELAY_X=A wait of {} seconds is required before being able to initiate the takeout
 CHAT_NOT_MODIFIED=The chat or channel wasn't modified (title, invites, username, admins, etc. are the same)
+URL_INVALID=The URL used was invalid (e.g. when answering a callback with an URL that's not t.me/yourbot or your game's URL)