From 6024198f93cafbbdbd6ce8fb6848ba2e2fa4cc6b Mon Sep 17 00:00:00 2001
From: "andrew (from workstation)" <andrew-ld@protonmail.com>
Date: Wed, 16 Mar 2022 21:53:26 +0100
Subject: [PATCH 1/3] faster pyrogram lre encode implementation

---
 pyrogram/file_id.py | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/pyrogram/file_id.py b/pyrogram/file_id.py
index 95f6ccbf1a..a8d5a922e3 100644
--- a/pyrogram/file_id.py
+++ b/pyrogram/file_id.py
@@ -21,6 +21,7 @@
 import struct
 from enum import IntEnum
 from io import BytesIO
+from typing import List
 
 from pyrogram.raw.core import Bytes, String
 
@@ -63,7 +64,7 @@ def rle_encode(s: bytes) -> bytes:
     Returns:
         ``bytes``: The encoded bytes
     """
-    r: bytes = b""
+    r: List[int] = []
     n: int = 0
 
     for b in s:
@@ -71,15 +72,15 @@ def rle_encode(s: bytes) -> bytes:
             n += 1
         else:
             if n:
-                r += bytes([0, n])
+                r.extend((0, n))
                 n = 0
 
-            r += bytes([b])
+            r.append(b)
 
     if n:
-        r += bytes([0, n])
+        r.extend((0, n))
 
-    return r
+    return bytes(r)
 
 
 def rle_decode(s: bytes) -> bytes:

From 629d52a6d8118043a3a59378519431db59e07a3c Mon Sep 17 00:00:00 2001
From: Dan <14043624+delivrance@users.noreply.github.com>
Date: Thu, 17 Mar 2022 12:37:45 +0100
Subject: [PATCH 2/3] Update file_id.py

---
 pyrogram/file_id.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/pyrogram/file_id.py b/pyrogram/file_id.py
index a8d5a922e3..bf15f79289 100644
--- a/pyrogram/file_id.py
+++ b/pyrogram/file_id.py
@@ -88,10 +88,10 @@ def rle_decode(s: bytes) -> bytes:
 
     Parameters:
         s (``bytes``):
-            Bytes to encode
+            Bytes to decode
 
     Returns:
-        ``bytes``: The encoded bytes
+        ``bytes``: The decoded bytes
     """
     r: bytes = b""
     z: bool = False

From 7e64f27d914f24430ad2d2101633d59da64736db Mon Sep 17 00:00:00 2001
From: "andrew (from workstation)" <andrew-ld@protonmail.com>
Date: Thu, 17 Mar 2022 20:30:47 +0100
Subject: [PATCH 3/3] optimized rle decode

---
 pyrogram/file_id.py | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/pyrogram/file_id.py b/pyrogram/file_id.py
index bf15f79289..1a54a49d61 100644
--- a/pyrogram/file_id.py
+++ b/pyrogram/file_id.py
@@ -93,7 +93,7 @@ def rle_decode(s: bytes) -> bytes:
     Returns:
         ``bytes``: The decoded bytes
     """
-    r: bytes = b""
+    r: List[int] = []
     z: bool = False
 
     for b in s:
@@ -102,12 +102,12 @@ def rle_decode(s: bytes) -> bytes:
             continue
 
         if z:
-            r += b"\x00" * b
+            r.extend((0,) * b)
             z = False
         else:
-            r += bytes([b])
+            r.append(b)
 
-    return r
+    return bytes(r)
 
 
 class FileType(IntEnum):