From bb0d29bdd52fb5bd6e0d4556676133a42f68c43c Mon Sep 17 00:00:00 2001
From: Lonami Exo <totufals@hotmail.com>
Date: Tue, 22 May 2018 19:21:01 +0200
Subject: [PATCH] Fix unboxed serialization including constructor ID

This only affected FutureSalts, but it's useful that it behaves
the way it should. cc @JuanPotato for spotting the bug.
---
 telethon_generator/generators/tlobject.py | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/telethon_generator/generators/tlobject.py b/telethon_generator/generators/tlobject.py
index 36d1f013..1058a1ae 100644
--- a/telethon_generator/generators/tlobject.py
+++ b/telethon_generator/generators/tlobject.py
@@ -466,6 +466,12 @@ def _write_arg_to_bytes(builder, arg, args, name=None):
         # Else it may be a custom type
         builder.write('bytes({})', name)
 
+        # If the type is not boxed (i.e. starts with lowercase) we should
+        # not serialize the constructor ID (so remove its first 4 bytes).
+        boxed = arg.type[arg.type.find('.') + 1].isupper()
+        if not boxed:
+            builder.write('[4:]')
+
     if arg.is_flag:
         builder.write(')')
         if arg.is_vector: