From 3921914a96101fba990dee39ac7b9e29375b8b33 Mon Sep 17 00:00:00 2001
From: orShadxw <1.thedarks.1@gmail.com>
Date: Tue, 1 Apr 2025 19:30:09 +0330
Subject: [PATCH] Fix issues raising errors, media dl and reply markup (#4592)

---
 telethon/_updates/session.py | 4 ++--
 telethon/client/downloads.py | 4 ++--
 telethon/tl/custom/button.py | 1 +
 3 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/telethon/_updates/session.py b/telethon/_updates/session.py
index 5025dd38..76ed4a6c 100644
--- a/telethon/_updates/session.py
+++ b/telethon/_updates/session.py
@@ -1,7 +1,7 @@
 from typing import Optional, Tuple
 from enum import IntEnum
 from ..tl.types import InputPeerUser, InputPeerChat, InputPeerChannel
-
+import struct
 
 class SessionState:
     """
@@ -173,7 +173,7 @@ class Entity:
         try:
             ty, id, hash = struct.unpack('<Bqq', blob)
         except struct.error:
-            raise ValueError(f'malformed entity data, got {string!r}') from None
+            raise ValueError(f'malformed entity data, got {blob!r}') from None
 
         return cls(EntityType(ty), id, hash)
 
diff --git a/telethon/client/downloads.py b/telethon/client/downloads.py
index 14dbe2ca..23040f64 100644
--- a/telethon/client/downloads.py
+++ b/telethon/client/downloads.py
@@ -992,8 +992,8 @@ class DownloadMethods:
             )
 
         # TODO Better way to get opened handles of files and auto-close
-        kind, possible_names = self._get_kind_and_names(web.attributes)
-        file = self._get_proper_filename(
+        kind, possible_names = cls._get_kind_and_names(web.attributes)
+        file = cls._get_proper_filename(
             file, kind, utils.get_extension(web),
             possible_names=possible_names
         )
diff --git a/telethon/tl/custom/button.py b/telethon/tl/custom/button.py
index 1b7d71e4..6ec09b54 100644
--- a/telethon/tl/custom/button.py
+++ b/telethon/tl/custom/button.py
@@ -49,6 +49,7 @@ class Button:
         Returns `True` if the button belongs to an inline keyboard.
         """
         return isinstance(button, (
+            types.KeyboardButtonCopy,
             types.KeyboardButtonBuy,
             types.KeyboardButtonCallback,
             types.KeyboardButtonGame,