Support InputNotifyPeer autocast

telethon/client/users.py

@@ -337,4 +337,18 @@ class UserMethods(TelegramBaseClient):
             'Cannot find any entity corresponding to "{}"'.format(string)
         )
 
+    async def _get_input_notify(self, notify):
+        """
+        Returns a :tl:`InputNotifyPeer`. This is a bit tricky because
+        it may or not need access to the client to convert what's given
+        into an input entity.
+        """
+        try:
+            if notify.SUBCLASS_OF_ID == 0x58981615:
+                if isinstance(notify, types.InputNotifyPeer):
+                    notify.peer = await self.get_input_entity(notify.peer)
+                return notify
+        except AttributeError:
+            return types.InputNotifyPeer(await self.get_input_entity(notify))
+
     # endregion

telethon_generator/generators/tlobject.py

@@ -23,6 +23,7 @@ AUTO_CASTS = {
     'InputDialogPeer':
         'utils.get_input_dialog(await client.get_input_entity({}))',
 
+    'InputNotifyPeer': 'await client._get_input_notify({})',
     'InputMedia': 'utils.get_input_media({})',
     'InputPhoto': 'utils.get_input_photo({})',
     'InputMessage': 'utils.get_input_message({})'