diff --git a/.gitignore b/.gitignore
index 0b1a0699..ce3407dd 100644
--- a/.gitignore
+++ b/.gitignore
@@ -11,6 +11,9 @@ pyrogram/api/all.py
 # PyCharm stuff
 .idea/
 
+# VS Code
+.vscode/
+
 # Byte-compiled / optimized / DLL files
 __pycache__/
 *.py[cod]
@@ -78,6 +81,7 @@ instance/
 
 # Sphinx documentation
 docs/_build/
+docs/source/_build
 
 # PyBuilder
 target/
diff --git a/compiler/api/compiler.py b/compiler/api/compiler.py
index 3995fd5f..255884db 100644
--- a/compiler/api/compiler.py
+++ b/compiler/api/compiler.py
@@ -478,7 +478,6 @@ def start():
 
         f.write("\n    0xbc799737: \"pyrogram.api.core.BoolFalse\",")
         f.write("\n    0x997275b5: \"pyrogram.api.core.BoolTrue\",")
-        f.write("\n    0x56730bcc: \"pyrogram.api.core.Null\",")
         f.write("\n    0x1cb5c415: \"pyrogram.api.core.Vector\",")
         f.write("\n    0x73f1f8dc: \"pyrogram.api.core.MsgContainer\",")
         f.write("\n    0xae500895: \"pyrogram.api.core.FutureSalts\",")
diff --git a/docs/source/faq.rst b/docs/source/faq.rst
index 2dde12f2..a05ff39c 100644
--- a/docs/source/faq.rst
+++ b/docs/source/faq.rst
@@ -192,7 +192,6 @@ dismissed and their IP addresses are now kept as aliases to the nearest one.
 
 Thanks to `@FrayxRulez <https://t.me/tgbetachat/104921>`_ for telling about alias DCs.
 
-
 I want to migrate my account from DCX to DCY.
 ---------------------------------------------
 
@@ -246,9 +245,13 @@ The error in question is ``[400 PEER_ID_INVALID]``, and could mean several thing
 
 - The chat id you tried to use is simply wrong, double check it.
 - The chat id refers to a group or channel you are not a member of.
-- The chat id refers to a user you have't seen yet (from contacts, groups in common, forwarded messages or private
-  chats).
 - The chat id argument you passed is in form of a string; you have to convert it into an integer with ``int(chat_id)``.
+- The chat id refers to a user your current session haven't met yet.
+
+About the last point: in order for you to meet a user and thus communicate with them, you should ask yourself how to
+contact people using official apps. The answer is the same for Pyrogram too and involves normal usages such as searching
+for usernames, meet them in a common group, have their phone contacts saved, getting a message mentioning them (either a
+forward or a mention in the message text).
 
 UnicodeEncodeError: '<encoding>' codec can't encode …
 -----------------------------------------------------
@@ -258,6 +261,14 @@ shows up when you try to print something and has very little to do with Pyrogram
 your own terminal. To fix it, either find a way to change the encoding settings of your terminal to UTF-8 or switch to a
 better terminal altogether.
 
+Uploading with URLs gives error WEBPAGE_CURL_FAILED
+---------------------------------------------------
+
+When uploading media files using an URL, the server automatically tries to download the media and uploads it to the
+Telegram cloud. This error usually happens in case the provided URL is not publicly accessible by Telegram itself or the
+media exceeds 20 MB in size. In such cases, your only option is to download the media yourself and upload from your
+local machine.
+
 My verification code expires immediately!
 -----------------------------------------
 
diff --git a/docs/source/index.rst b/docs/source/index.rst
index 5cb9bb2e..f6961bc6 100644
--- a/docs/source/index.rst
+++ b/docs/source/index.rst
@@ -45,8 +45,9 @@ Welcome to Pyrogram
     topics/tgcrypto
     topics/storage-engines
     topics/text-formatting
-    topics/serialize
+    topics/serializing
     topics/proxy
+    topics/scheduling
     topics/bots-interaction
     topics/mtproto-vs-botapi
     topics/debugging
diff --git a/docs/source/topics/scheduling.rst b/docs/source/topics/scheduling.rst
new file mode 100644
index 00000000..3cb95ec7
--- /dev/null
+++ b/docs/source/topics/scheduling.rst
@@ -0,0 +1,87 @@
+Scheduling Tasks
+================
+
+Scheduling tasks means executing one or more functions periodically at pre-defined intervals or after a delay. This is
+useful, for example, to send recurring messages to specific chats or users.
+
+Since there's no built-in task scheduler in Pyrogram, this page will only show examples on how to integrate Pyrogram
+with the main Python schedule libraries such as ``schedule`` and ``apscheduler``. For more detailed information, you can
+visit and learn from each library documentation.
+
+Using ``schedule``
+------------------
+
+- Install with ``pip3 install schedule``
+- Documentation: https://schedule.readthedocs.io
+
+.. code-block:: python
+
+    import time
+
+    import schedule
+
+    from pyrogram import Client
+
+    app = Client("my_account")
+
+
+    def job():
+        app.send_message("me", "Hi!")
+
+
+    schedule.every(3).seconds.do(job)
+
+    with app:
+        while True:
+            schedule.run_pending()
+            time.sleep(1)
+
+
+
+Using ``apscheduler``
+---------------------
+
+- Install with ``pip3 install apscheduler``
+- Documentation: https://apscheduler.readthedocs.io
+
+.. code-block:: python
+
+    from apscheduler.schedulers.background import BackgroundScheduler
+
+    from pyrogram import Client
+
+    app = Client("my_account")
+
+
+    def job():
+        app.send_message("me", "Hi!")
+
+
+    scheduler = BackgroundScheduler()
+    scheduler.add_job(job, "interval", seconds=3)
+
+    scheduler.start()
+    app.run()
+
+``apscheduler`` does also support async code, here's an example with
+`Pyrogram Asyncio <https://docs.pyrogram.org/intro/install.html#asynchronous>`_:
+
+.. code-block:: python
+
+    from apscheduler.schedulers.asyncio import AsyncIOScheduler
+
+    from pyrogram import Client
+
+    app = Client("my_account")
+
+
+    async def job():
+        await app.send_message("me", "Hi!")
+
+
+    scheduler = AsyncIOScheduler()
+    scheduler.add_job(job, "interval", seconds=3)
+
+    scheduler.start()
+    app.run()
+
diff --git a/docs/source/topics/serialize.rst b/docs/source/topics/serializing.rst
similarity index 100%
rename from docs/source/topics/serialize.rst
rename to docs/source/topics/serializing.rst
diff --git a/pyrogram/api/__init__.py b/pyrogram/api/__init__.py
index 8d7831ff..78f1a579 100644
--- a/pyrogram/api/__init__.py
+++ b/pyrogram/api/__init__.py
@@ -19,8 +19,7 @@
 from importlib import import_module
 
 from .all import objects
-from .core.tl_object import TLObject
 
 for k, v in objects.items():
     path, name = v.rsplit(".", 1)
-    TLObject.all[k] = getattr(import_module(path), name)
+    objects[k] = getattr(import_module(path), name)
diff --git a/pyrogram/api/core/__init__.py b/pyrogram/api/core/__init__.py
index aaf5a324..ff4fc9c5 100644
--- a/pyrogram/api/core/__init__.py
+++ b/pyrogram/api/core/__init__.py
@@ -22,8 +22,5 @@ from .gzip_packed import GzipPacked
 from .list import List
 from .message import Message
 from .msg_container import MsgContainer
-from .primitives import (
-    Bool, BoolTrue, BoolFalse, Bytes, Double,
-    Int, Long, Int128, Int256, Null, String, Vector
-)
+from .primitives import *
 from .tl_object import TLObject
diff --git a/pyrogram/api/core/primitives/__init__.py b/pyrogram/api/core/primitives/__init__.py
index 8885878b..f86e3cab 100644
--- a/pyrogram/api/core/primitives/__init__.py
+++ b/pyrogram/api/core/primitives/__init__.py
@@ -16,10 +16,11 @@
 # You should have received a copy of the GNU Lesser General Public License
 # along with Pyrogram.  If not, see <http://www.gnu.org/licenses/>.
 
-from .bool import Bool, BoolTrue, BoolFalse
+from .bool import Bool, BoolFalse, BoolTrue
 from .bytes import Bytes
 from .double import Double
 from .int import Int, Long, Int128, Int256
-from .null import Null
 from .string import String
 from .vector import Vector
+
+__all__ = ["Bool", "BoolFalse", "BoolTrue", "Bytes", "Double", "Int", "Long", "Int128", "Int256", "String", "Vector"]
diff --git a/pyrogram/api/core/primitives/null.py b/pyrogram/api/core/primitives/null.py
deleted file mode 100644
index ffddea94..00000000
--- a/pyrogram/api/core/primitives/null.py
+++ /dev/null
@@ -1,32 +0,0 @@
-# Pyrogram - Telegram MTProto API Client Library for Python
-# Copyright (C) 2017-2019 Dan Tès <https://github.com/delivrance>
-#
-# This file is part of Pyrogram.
-#
-# Pyrogram is free software: you can redistribute it and/or modify
-# it under the terms of the GNU Lesser General Public License as published
-# by the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# Pyrogram is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU Lesser General Public License for more details.
-#
-# You should have received a copy of the GNU Lesser General Public License
-# along with Pyrogram.  If not, see <http://www.gnu.org/licenses/>.
-
-from io import BytesIO
-
-from ..tl_object import TLObject
-
-
-class Null(TLObject):
-    ID = 0x56730bcc
-
-    @staticmethod
-    def read(b: BytesIO, *args) -> None:
-        return None
-
-    def __new__(cls) -> bytes:
-        return cls.ID.to_bytes(4, "little")
diff --git a/pyrogram/api/core/tl_object.py b/pyrogram/api/core/tl_object.py
index 4b951404..d39a8ae2 100644
--- a/pyrogram/api/core/tl_object.py
+++ b/pyrogram/api/core/tl_object.py
@@ -20,17 +20,17 @@ from collections import OrderedDict
 from io import BytesIO
 from json import dumps
 
+from ..all import objects
+
 
 class TLObject:
-    all = {}
-
     __slots__ = []
 
     QUALNAME = "Base"
 
     @staticmethod
     def read(b: BytesIO, *args):  # TODO: Rename b -> data
-        return TLObject.all[int.from_bytes(b.read(4), "little")].read(b, *args)
+        return objects[int.from_bytes(b.read(4), "little")].read(b, *args)
 
     def write(self, *args) -> bytes:
         pass
diff --git a/pyrogram/client/client.py b/pyrogram/client/client.py
index 55f20743..0b9fa076 100644
--- a/pyrogram/client/client.py
+++ b/pyrogram/client/client.py
@@ -1031,7 +1031,7 @@ class Client(Methods, BaseClient):
                 access_hash = 0
                 peer_type = "group"
             elif isinstance(peer, (types.Channel, types.ChannelForbidden)):
-                peer_id = int("-100" + str(peer.id))
+                peer_id = utils.get_channel_id(peer.id)
                 access_hash = peer.access_hash
 
                 username = getattr(peer, "username", None)
@@ -1139,7 +1139,7 @@ class Client(Methods, BaseClient):
                                 try:
                                     diff = await self.send(
                                         functions.updates.GetChannelDifference(
-                                            channel=await self.resolve_peer(int("-100" + str(channel_id))),
+                                            channel=await self.resolve_peer(utils.get_channel_id(channel_id)),
                                             filter=types.ChannelMessagesFilter(
                                                 ranges=[types.MessageRange(
                                                     min_id=update.message.id,
@@ -1527,33 +1527,38 @@ class Client(Methods, BaseClient):
                     except KeyError:
                         raise PeerIdInvalid
 
-            if peer_id > 0:
+            peer_type = utils.get_type(peer_id)
+
+            if peer_type == "user":
                 self.fetch_peers(
                     await self.send(
                         functions.users.GetUsers(
-                            id=[types.InputUser(
-                                user_id=peer_id,
-                                access_hash=0
-                            )]
+                            id=[
+                                types.InputUser(
+                                    user_id=peer_id,
+                                    access_hash=0
+                                )
+                            ]
                         )
                     )
                 )
+            elif peer_type == "chat":
+                await self.send(
+                    functions.messages.GetChats(
+                        id=[-peer_id]
+                    )
+                )
             else:
-                if str(peer_id).startswith("-100"):
-                    await self.send(
-                        functions.channels.GetChannels(
-                            id=[types.InputChannel(
-                                channel_id=int(str(peer_id)[4:]),
+                await self.send(
+                    functions.channels.GetChannels(
+                        id=[
+                            types.InputChannel(
+                                channel_id=utils.get_channel_id(peer_id),
                                 access_hash=0
-                            )]
-                        )
-                    )
-                else:
-                    await self.send(
-                        functions.messages.GetChats(
-                            id=[-peer_id]
-                        )
+                            )
+                        ]
                     )
+                )
 
             try:
                 return self.storage.get_peer_by_id(peer_id)
diff --git a/pyrogram/client/ext/dispatcher.py b/pyrogram/client/ext/dispatcher.py
index d4388ddd..744df2a8 100644
--- a/pyrogram/client/ext/dispatcher.py
+++ b/pyrogram/client/ext/dispatcher.py
@@ -171,8 +171,13 @@ class Dispatcher:
                             args = None
 
                             if isinstance(handler, handler_type):
-                                if handler.check(parsed_update):
-                                    args = (parsed_update,)
+                                try:
+                                    if handler.check(parsed_update):
+                                        args = (parsed_update,)
+                                except Exception as e:
+                                    log.error(e, exc_info=True)
+                                    continue
+
                             elif isinstance(handler, RawUpdateHandler):
                                 args = (update, users, chats)
 
diff --git a/pyrogram/client/ext/utils.py b/pyrogram/client/ext/utils.py
index 30f7e476..4093d645 100644
--- a/pyrogram/client/ext/utils.py
+++ b/pyrogram/client/ext/utils.py
@@ -21,10 +21,11 @@ import base64
 import struct
 import sys
 from concurrent.futures.thread import ThreadPoolExecutor
-from typing import Union, List
+from typing import List
+from typing import Union
 
 import pyrogram
-
+from pyrogram.api.types import PeerUser, PeerChat, PeerChannel
 from . import BaseClient
 from ...api import types
 
@@ -33,10 +34,17 @@ def decode(s: str) -> bytes:
     s = base64.urlsafe_b64decode(s + "=" * (-len(s) % 4))
     r = b""
 
-    assert s[-1] == 2
+    try:
+        assert s[-1] == 2
+        skip = 1
+    except AssertionError:
+        assert s[-2] == 22
+        assert s[-1] == 4
+        skip = 2
 
     i = 0
-    while i < len(s) - 1:
+
+    while i < len(s) - skip:
         if s[i] != 0:
             r += bytes([s[i]])
         else:
@@ -52,7 +60,7 @@ def encode(s: bytes) -> str:
     r = b""
     n = 0
 
-    for i in s + bytes([2]):
+    for i in s + bytes([22]) + bytes([4]):
         if i == 0:
             n += 1
         else:
@@ -74,23 +82,6 @@ async def ainput(prompt: str = ""):
         )).rstrip()
 
 
-def get_peer_id(input_peer) -> int:
-    return (
-        input_peer.user_id if isinstance(input_peer, types.InputPeerUser)
-        else -input_peer.chat_id if isinstance(input_peer, types.InputPeerChat)
-        else int("-100" + str(input_peer.channel_id))
-    )
-
-
-def get_input_peer(peer_id: int, access_hash: int):
-    return (
-        types.InputPeerUser(user_id=peer_id, access_hash=access_hash) if peer_id > 0
-        else types.InputPeerChannel(channel_id=int(str(peer_id)[4:]), access_hash=access_hash)
-        if (str(peer_id).startswith("-100") and access_hash)
-        else types.InputPeerChat(chat_id=-peer_id)
-    )
-
-
 def get_offset_date(dialogs):
     for m in reversed(dialogs.messages):
         if isinstance(m, types.MessageEmpty):
@@ -195,7 +186,7 @@ def parse_deleted_messages(client, update) -> List["pyrogram.Message"]:
             pyrogram.Message(
                 message_id=message,
                 chat=pyrogram.Chat(
-                    id=int("-100" + str(channel_id)),
+                    id=get_channel_id(channel_id),
                     type="channel",
                     client=client
                 ) if channel_id is not None else None,
@@ -215,3 +206,39 @@ def unpack_inline_message_id(inline_message_id: str) -> types.InputBotInlineMess
         id=r[1],
         access_hash=r[2]
     )
+
+
+MIN_CHANNEL_ID = -1002147483647
+MAX_CHANNEL_ID = -1000000000000
+MIN_CHAT_ID = -2147483647
+MAX_USER_ID = 2147483647
+
+
+def get_peer_id(peer: Union[PeerUser, PeerChat, PeerChannel]) -> int:
+    if isinstance(peer, PeerUser):
+        return peer.user_id
+
+    if isinstance(peer, PeerChat):
+        return -peer.chat_id
+
+    if isinstance(peer, PeerChannel):
+        return MAX_CHANNEL_ID - peer.channel_id
+
+    raise ValueError("Peer type invalid: {}".format(peer))
+
+
+def get_type(peer_id: int) -> str:
+    if peer_id < 0:
+        if MIN_CHAT_ID <= peer_id:
+            return "chat"
+
+        if MIN_CHANNEL_ID <= peer_id < MAX_CHANNEL_ID:
+            return "channel"
+    elif 0 < peer_id <= MAX_USER_ID:
+        return "user"
+
+    raise ValueError("Peer id invalid: {}".format(peer_id))
+
+
+def get_channel_id(peer_id: int) -> int:
+    return MAX_CHANNEL_ID - peer_id
diff --git a/pyrogram/client/methods/chats/get_chat.py b/pyrogram/client/methods/chats/get_chat.py
index 6def6aea..785886ad 100644
--- a/pyrogram/client/methods/chats/get_chat.py
+++ b/pyrogram/client/methods/chats/get_chat.py
@@ -20,7 +20,7 @@ from typing import Union
 
 import pyrogram
 from pyrogram.api import functions, types
-from ...ext import BaseClient
+from ...ext import BaseClient, utils
 
 
 class GetChat(BaseClient):
@@ -70,7 +70,7 @@ class GetChat(BaseClient):
                 chat_id = -r.chat.id
 
             if isinstance(r.chat, types.Channel):
-                chat_id = int("-100" + str(r.chat.id))
+                chat_id = utils.get_channel_id(r.chat.id)
 
         peer = await self.resolve_peer(chat_id)
 
diff --git a/pyrogram/client/methods/chats/get_dialogs.py b/pyrogram/client/methods/chats/get_dialogs.py
index 907ee41c..ec25249d 100644
--- a/pyrogram/client/methods/chats/get_dialogs.py
+++ b/pyrogram/client/methods/chats/get_dialogs.py
@@ -24,7 +24,7 @@ import pyrogram
 from pyrogram.api import functions, types
 from pyrogram.errors import FloodWait
 
-from ...ext import BaseClient
+from ...ext import BaseClient, utils
 
 log = logging.getLogger(__name__)
 
@@ -101,10 +101,8 @@ class GetDialogs(BaseClient):
                     chat_id = to_id.user_id
                 else:
                     chat_id = message.from_id
-            elif isinstance(to_id, types.PeerChat):
-                chat_id = -to_id.chat_id
             else:
-                chat_id = int("-100" + str(to_id.channel_id))
+                chat_id = utils.get_peer_id(to_id)
 
             messages[chat_id] = await pyrogram.Message._parse(self, message, users, chats)
 
diff --git a/pyrogram/client/methods/users/block_user.py b/pyrogram/client/methods/users/block_user.py
index 77ffcaba..5b60d5f8 100644
--- a/pyrogram/client/methods/users/block_user.py
+++ b/pyrogram/client/methods/users/block_user.py
@@ -19,7 +19,6 @@
 from typing import Union
 
 from pyrogram.api import functions
-
 from ...ext import BaseClient
 
 
diff --git a/pyrogram/client/methods/users/delete_profile_photos.py b/pyrogram/client/methods/users/delete_profile_photos.py
index ce919eb7..6b96e0bb 100644
--- a/pyrogram/client/methods/users/delete_profile_photos.py
+++ b/pyrogram/client/methods/users/delete_profile_photos.py
@@ -21,7 +21,6 @@ from typing import List, Union
 
 from pyrogram.api import functions, types
 from pyrogram.client.ext import utils
-
 from ...ext import BaseClient
 
 
diff --git a/pyrogram/client/methods/users/get_profile_photos.py b/pyrogram/client/methods/users/get_profile_photos.py
index 49f6a713..ac8380a9 100644
--- a/pyrogram/client/methods/users/get_profile_photos.py
+++ b/pyrogram/client/methods/users/get_profile_photos.py
@@ -21,7 +21,6 @@ from typing import Union, List
 import pyrogram
 from pyrogram.api import functions, types
 from pyrogram.client.ext import utils
-
 from ...ext import BaseClient
 
 
diff --git a/pyrogram/client/methods/users/get_profile_photos_count.py b/pyrogram/client/methods/users/get_profile_photos_count.py
index 87348194..f40d5974 100644
--- a/pyrogram/client/methods/users/get_profile_photos_count.py
+++ b/pyrogram/client/methods/users/get_profile_photos_count.py
@@ -19,7 +19,6 @@
 from typing import Union
 
 from pyrogram.api import functions, types
-
 from ...ext import BaseClient
 
 
diff --git a/pyrogram/client/methods/users/unblock_user.py b/pyrogram/client/methods/users/unblock_user.py
index e9433b8a..9821734d 100644
--- a/pyrogram/client/methods/users/unblock_user.py
+++ b/pyrogram/client/methods/users/unblock_user.py
@@ -19,7 +19,6 @@
 from typing import Union
 
 from pyrogram.api import functions
-
 from ...ext import BaseClient
 
 
diff --git a/pyrogram/client/parser/__init__.py b/pyrogram/client/parser/__init__.py
index 4769038d..53806619 100644
--- a/pyrogram/client/parser/__init__.py
+++ b/pyrogram/client/parser/__init__.py
@@ -16,4 +16,4 @@
 # You should have received a copy of the GNU Lesser General Public License
 # along with Pyrogram.  If not, see <http://www.gnu.org/licenses/>.
 
-from .parser import Parser
\ No newline at end of file
+from .parser import Parser
diff --git a/pyrogram/client/storage/__init__.py b/pyrogram/client/storage/__init__.py
index 00d2f144..657c06eb 100644
--- a/pyrogram/client/storage/__init__.py
+++ b/pyrogram/client/storage/__init__.py
@@ -16,6 +16,6 @@
 # You should have received a copy of the GNU Lesser General Public License
 # along with Pyrogram.  If not, see <http://www.gnu.org/licenses/>.
 
-from .memory_storage import MemoryStorage
 from .file_storage import FileStorage
+from .memory_storage import MemoryStorage
 from .storage import Storage
diff --git a/pyrogram/client/types/bots_and_keyboards/callback_game.py b/pyrogram/client/types/bots_and_keyboards/callback_game.py
index acf6df60..338cfb06 100644
--- a/pyrogram/client/types/bots_and_keyboards/callback_game.py
+++ b/pyrogram/client/types/bots_and_keyboards/callback_game.py
@@ -25,7 +25,5 @@ class CallbackGame(Object):
     Use BotFather to set up your game.
     """
 
-    __slots__ = []
-
     def __init__(self):
         super().__init__()
diff --git a/pyrogram/client/types/bots_and_keyboards/callback_query.py b/pyrogram/client/types/bots_and_keyboards/callback_query.py
index 27cebd7e..7f355312 100644
--- a/pyrogram/client/types/bots_and_keyboards/callback_query.py
+++ b/pyrogram/client/types/bots_and_keyboards/callback_query.py
@@ -25,6 +25,7 @@ from pyrogram.api import types
 from ..object import Object
 from ..update import Update
 from ..user_and_chats import User
+from ...ext import utils
 
 
 class CallbackQuery(Object, Update):
@@ -60,8 +61,6 @@ class CallbackQuery(Object, Update):
 
     """
 
-    __slots__ = ["id", "from_user", "chat_instance", "message", "inline_message_id", "data", "game_short_name"]
-
     def __init__(
         self,
         *,
@@ -90,16 +89,7 @@ class CallbackQuery(Object, Update):
         inline_message_id = None
 
         if isinstance(callback_query, types.UpdateBotCallbackQuery):
-            peer = callback_query.peer
-
-            if isinstance(peer, types.PeerUser):
-                peer_id = peer.user_id
-            elif isinstance(peer, types.PeerChat):
-                peer_id = -peer.chat_id
-            else:
-                peer_id = int("-100" + str(peer.channel_id))
-
-            message = await client.get_messages(peer_id, callback_query.msg_id)
+            message = await client.get_messages(utils.get_peer_id(callback_query.peer), callback_query.msg_id)
         elif isinstance(callback_query, types.UpdateInlineBotCallbackQuery):
             inline_message_id = b64encode(
                 pack(
diff --git a/pyrogram/client/types/bots_and_keyboards/force_reply.py b/pyrogram/client/types/bots_and_keyboards/force_reply.py
index 6c542aa8..ef5c0ccb 100644
--- a/pyrogram/client/types/bots_and_keyboards/force_reply.py
+++ b/pyrogram/client/types/bots_and_keyboards/force_reply.py
@@ -37,8 +37,6 @@ class ForceReply(Object):
             2) if the bot's message is a reply (has reply_to_message_id), sender of the original message.
     """
 
-    __slots__ = ["selective"]
-
     def __init__(
         self,
         selective: bool = None
diff --git a/pyrogram/client/types/bots_and_keyboards/game_high_score.py b/pyrogram/client/types/bots_and_keyboards/game_high_score.py
index 5d576ad4..38e2242a 100644
--- a/pyrogram/client/types/bots_and_keyboards/game_high_score.py
+++ b/pyrogram/client/types/bots_and_keyboards/game_high_score.py
@@ -37,8 +37,6 @@ class GameHighScore(Object):
             Position in high score table for the game.
     """
 
-    __slots__ = ["user", "score", "position"]
-
     def __init__(
         self,
         *,
diff --git a/pyrogram/client/types/bots_and_keyboards/inline_keyboard_button.py b/pyrogram/client/types/bots_and_keyboards/inline_keyboard_button.py
index cfc969e7..22e728e6 100644
--- a/pyrogram/client/types/bots_and_keyboards/inline_keyboard_button.py
+++ b/pyrogram/client/types/bots_and_keyboards/inline_keyboard_button.py
@@ -23,6 +23,7 @@ from pyrogram.api.types import (
     KeyboardButtonUrl, KeyboardButtonCallback,
     KeyboardButtonSwitchInline, KeyboardButtonGame
 )
+
 from .callback_game import CallbackGame
 from ..object import Object
 
@@ -59,10 +60,6 @@ class InlineKeyboardButton(Object):
 
     # TODO: Add callback_game and pay fields
 
-    __slots__ = [
-        "text", "url", "callback_data", "switch_inline_query", "switch_inline_query_current_chat", "callback_game"
-    ]
-
     def __init__(
         self,
         text: str,
diff --git a/pyrogram/client/types/bots_and_keyboards/inline_keyboard_markup.py b/pyrogram/client/types/bots_and_keyboards/inline_keyboard_markup.py
index 7b811f88..811c4365 100644
--- a/pyrogram/client/types/bots_and_keyboards/inline_keyboard_markup.py
+++ b/pyrogram/client/types/bots_and_keyboards/inline_keyboard_markup.py
@@ -19,6 +19,7 @@
 from typing import List
 
 from pyrogram.api.types import ReplyInlineMarkup, KeyboardButtonRow
+
 from . import InlineKeyboardButton
 from ..object import Object
 
@@ -31,8 +32,6 @@ class InlineKeyboardMarkup(Object):
             List of button rows, each represented by a List of InlineKeyboardButton objects.
     """
 
-    __slots__ = ["inline_keyboard"]
-
     def __init__(
         self,
         inline_keyboard: List[List[InlineKeyboardButton]]
diff --git a/pyrogram/client/types/bots_and_keyboards/keyboard_button.py b/pyrogram/client/types/bots_and_keyboards/keyboard_button.py
index 8374db1b..21c03613 100644
--- a/pyrogram/client/types/bots_and_keyboards/keyboard_button.py
+++ b/pyrogram/client/types/bots_and_keyboards/keyboard_button.py
@@ -41,8 +41,6 @@ class KeyboardButton(Object):
             Available in private chats only.
     """
 
-    __slots__ = ["text", "request_contact", "request_location"]
-
     def __init__(
         self,
         text: str,
diff --git a/pyrogram/client/types/bots_and_keyboards/reply_keyboard_markup.py b/pyrogram/client/types/bots_and_keyboards/reply_keyboard_markup.py
index 4e666d1f..12799bd7 100644
--- a/pyrogram/client/types/bots_and_keyboards/reply_keyboard_markup.py
+++ b/pyrogram/client/types/bots_and_keyboards/reply_keyboard_markup.py
@@ -20,6 +20,7 @@ from typing import List, Union
 
 from pyrogram.api.types import KeyboardButtonRow
 from pyrogram.api.types import ReplyKeyboardMarkup as RawReplyKeyboardMarkup
+
 from . import KeyboardButton
 from ..object import Object
 
@@ -49,8 +50,6 @@ class ReplyKeyboardMarkup(Object):
             select the new language. Other users in the group don't see the keyboard.
     """
 
-    __slots__ = ["keyboard", "resize_keyboard", "one_time_keyboard", "selective"]
-
     def __init__(
         self,
         keyboard: List[List[Union[KeyboardButton, str]]],
diff --git a/pyrogram/client/types/bots_and_keyboards/reply_keyboard_remove.py b/pyrogram/client/types/bots_and_keyboards/reply_keyboard_remove.py
index d451a8e8..1623c9bd 100644
--- a/pyrogram/client/types/bots_and_keyboards/reply_keyboard_remove.py
+++ b/pyrogram/client/types/bots_and_keyboards/reply_keyboard_remove.py
@@ -38,8 +38,6 @@ class ReplyKeyboardRemove(Object):
             keyboard for that user, while still showing the keyboard with poll options to users who haven't voted yet.
     """
 
-    __slots__ = ["selective"]
-
     def __init__(
         self,
         selective: bool = None
diff --git a/pyrogram/client/types/inline_mode/inline_query.py b/pyrogram/client/types/inline_mode/inline_query.py
index 12f1bbaf..36514a97 100644
--- a/pyrogram/client/types/inline_mode/inline_query.py
+++ b/pyrogram/client/types/inline_mode/inline_query.py
@@ -48,7 +48,6 @@ class InlineQuery(Object, Update):
         location (:obj:`Location`. *optional*):
             Sender location, only for bots that request user location.
     """
-    __slots__ = ["id", "from_user", "query", "offset", "location"]
 
     def __init__(
         self,
diff --git a/pyrogram/client/types/inline_mode/inline_query_result.py b/pyrogram/client/types/inline_mode/inline_query_result.py
index e7f5904e..02a5e11e 100644
--- a/pyrogram/client/types/inline_mode/inline_query_result.py
+++ b/pyrogram/client/types/inline_mode/inline_query_result.py
@@ -53,8 +53,6 @@ class InlineQueryResult(Object):
     - :obj:`InlineQueryResultAnimation`
     """
 
-    __slots__ = ["type", "id", "input_message_content", "reply_markup"]
-
     def __init__(
         self,
         type: str,
diff --git a/pyrogram/client/types/inline_mode/inline_query_result_animation.py b/pyrogram/client/types/inline_mode/inline_query_result_animation.py
index 4d2d5596..c4cb26e4 100644
--- a/pyrogram/client/types/inline_mode/inline_query_result_animation.py
+++ b/pyrogram/client/types/inline_mode/inline_query_result_animation.py
@@ -68,11 +68,6 @@ class InlineQueryResultAnimation(InlineQueryResult):
             Content of the message to be sent instead of the photo.
     """
 
-    __slots__ = [
-        "animation_url", "thumb_url", "title", "description", "caption", "parse_mode", "reply_markup",
-        "input_message_content"
-    ]
-
     def __init__(
         self,
         animation_url: str,
diff --git a/pyrogram/client/types/inline_mode/inline_query_result_article.py b/pyrogram/client/types/inline_mode/inline_query_result_article.py
index a887a0ba..33b6deff 100644
--- a/pyrogram/client/types/inline_mode/inline_query_result_article.py
+++ b/pyrogram/client/types/inline_mode/inline_query_result_article.py
@@ -49,8 +49,6 @@ class InlineQueryResultArticle(InlineQueryResult):
             Inline keyboard attached to the message.
     """
 
-    __slots__ = ["title", "url", "description", "thumb_url"]
-
     def __init__(
         self,
         title: str,
diff --git a/pyrogram/client/types/inline_mode/inline_query_result_photo.py b/pyrogram/client/types/inline_mode/inline_query_result_photo.py
index 3442764e..ffcc21c0 100644
--- a/pyrogram/client/types/inline_mode/inline_query_result_photo.py
+++ b/pyrogram/client/types/inline_mode/inline_query_result_photo.py
@@ -68,11 +68,6 @@ class InlineQueryResultPhoto(InlineQueryResult):
             Content of the message to be sent instead of the photo.
     """
 
-    __slots__ = [
-        "photo_url", "thumb_url", "title", "description", "caption", "parse_mode", "reply_markup",
-        "input_message_content"
-    ]
-
     def __init__(
         self,
         photo_url: str,
diff --git a/pyrogram/client/types/input_media/input_media.py b/pyrogram/client/types/input_media/input_media.py
index 2b5d7f0f..9b89fe12 100644
--- a/pyrogram/client/types/input_media/input_media.py
+++ b/pyrogram/client/types/input_media/input_media.py
@@ -30,7 +30,6 @@ class InputMedia(Object):
     - :obj:`InputMediaPhoto`
     - :obj:`InputMediaVideo`
     """
-    __slots__ = ["media", "caption", "parse_mode"]
 
     def __init__(self, media: str, caption: str, parse_mode: str):
         super().__init__()
diff --git a/pyrogram/client/types/input_media/input_media_animation.py b/pyrogram/client/types/input_media/input_media_animation.py
index d6c67d56..dc70cbec 100644
--- a/pyrogram/client/types/input_media/input_media_animation.py
+++ b/pyrogram/client/types/input_media/input_media_animation.py
@@ -56,8 +56,6 @@ class InputMediaAnimation(InputMedia):
             Animation duration.
     """
 
-    __slots__ = ["thumb", "width", "height", "duration"]
-
     def __init__(
         self,
         media: str,
diff --git a/pyrogram/client/types/input_media/input_media_audio.py b/pyrogram/client/types/input_media/input_media_audio.py
index f01444a8..5ed670a6 100644
--- a/pyrogram/client/types/input_media/input_media_audio.py
+++ b/pyrogram/client/types/input_media/input_media_audio.py
@@ -58,8 +58,6 @@ class InputMediaAudio(InputMedia):
             Title of the audio
     """
 
-    __slots__ = ["thumb", "duration", "performer", "title"]
-
     def __init__(
         self,
         media: str,
diff --git a/pyrogram/client/types/input_media/input_media_document.py b/pyrogram/client/types/input_media/input_media_document.py
index af549c81..14756e02 100644
--- a/pyrogram/client/types/input_media/input_media_document.py
+++ b/pyrogram/client/types/input_media/input_media_document.py
@@ -47,8 +47,6 @@ class InputMediaDocument(InputMedia):
             Pass None to completely disable style parsing.
     """
 
-    __slots__ = ["thumb"]
-
     def __init__(
         self,
         media: str,
diff --git a/pyrogram/client/types/input_media/input_media_photo.py b/pyrogram/client/types/input_media/input_media_photo.py
index 30c53777..5e18cdd6 100644
--- a/pyrogram/client/types/input_media/input_media_photo.py
+++ b/pyrogram/client/types/input_media/input_media_photo.py
@@ -43,8 +43,6 @@ class InputMediaPhoto(InputMedia):
             Pass None to completely disable style parsing.
     """
 
-    __slots__ = []
-
     def __init__(
         self,
         media: str,
diff --git a/pyrogram/client/types/input_media/input_media_video.py b/pyrogram/client/types/input_media/input_media_video.py
index 3500ff55..6b64caa8 100644
--- a/pyrogram/client/types/input_media/input_media_video.py
+++ b/pyrogram/client/types/input_media/input_media_video.py
@@ -61,8 +61,6 @@ class InputMediaVideo(InputMedia):
             Pass True, if the uploaded video is suitable for streaming.
     """
 
-    __slots__ = ["thumb", "width", "height", "duration", "supports_streaming"]
-
     def __init__(
         self,
         media: str,
diff --git a/pyrogram/client/types/input_media/input_phone_contact.py b/pyrogram/client/types/input_media/input_phone_contact.py
index 9c03694d..7498768d 100644
--- a/pyrogram/client/types/input_media/input_phone_contact.py
+++ b/pyrogram/client/types/input_media/input_phone_contact.py
@@ -37,8 +37,6 @@ class InputPhoneContact(Object):
             Contact's last name
     """
 
-    __slots__ = []
-
     def __init__(self, phone: str, first_name: str, last_name: str = ""):
         super().__init__(None)
 
diff --git a/pyrogram/client/types/input_message_content/input_message_content.py b/pyrogram/client/types/input_message_content/input_message_content.py
index b02c6b38..6561b5a8 100644
--- a/pyrogram/client/types/input_message_content/input_message_content.py
+++ b/pyrogram/client/types/input_message_content/input_message_content.py
@@ -31,8 +31,6 @@ class InputMessageContent(Object):
     - :obj:`InputTextMessageContent`
     """
 
-    __slots__ = []
-
     def __init__(self):
         super().__init__()
 
diff --git a/pyrogram/client/types/input_message_content/input_text_message_content.py b/pyrogram/client/types/input_message_content/input_text_message_content.py
index 7fa9d9dd..f9815cfc 100644
--- a/pyrogram/client/types/input_message_content/input_text_message_content.py
+++ b/pyrogram/client/types/input_message_content/input_text_message_content.py
@@ -41,8 +41,6 @@ class InputTextMessageContent(InputMessageContent):
             Disables link previews for links in this message.
     """
 
-    __slots__ = ["message_text", "parse_mode", "disable_web_page_preview"]
-
     def __init__(self, message_text: str, parse_mode: Union[str, None] = object, disable_web_page_preview: bool = None):
         super().__init__()
 
diff --git a/pyrogram/client/types/messages_and_media/animation.py b/pyrogram/client/types/messages_and_media/animation.py
index 5441a114..ba6744ce 100644
--- a/pyrogram/client/types/messages_and_media/animation.py
+++ b/pyrogram/client/types/messages_and_media/animation.py
@@ -58,8 +58,6 @@ class Animation(Object):
             Animation thumbnails.
     """
 
-    __slots__ = ["file_id", "file_name", "mime_type", "file_size", "date", "width", "height", "duration", "thumbs"]
-
     def __init__(
         self,
         *,
diff --git a/pyrogram/client/types/messages_and_media/audio.py b/pyrogram/client/types/messages_and_media/audio.py
index 3d9cf8a6..6d8a12e9 100644
--- a/pyrogram/client/types/messages_and_media/audio.py
+++ b/pyrogram/client/types/messages_and_media/audio.py
@@ -58,10 +58,6 @@ class Audio(Object):
             Thumbnails of the music file album cover.
     """
 
-    __slots__ = [
-        "file_id", "file_name", "mime_type", "file_size", "date", "duration", "performer", "title", "thumbs"
-    ]
-
     def __init__(
         self,
         *,
diff --git a/pyrogram/client/types/messages_and_media/contact.py b/pyrogram/client/types/messages_and_media/contact.py
index d18f5e18..ad263397 100644
--- a/pyrogram/client/types/messages_and_media/contact.py
+++ b/pyrogram/client/types/messages_and_media/contact.py
@@ -42,8 +42,6 @@ class Contact(Object):
             Additional data about the contact in the form of a vCard.
     """
 
-    __slots__ = ["phone_number", "first_name", "last_name", "user_id", "vcard"]
-
     def __init__(
         self,
         *,
diff --git a/pyrogram/client/types/messages_and_media/document.py b/pyrogram/client/types/messages_and_media/document.py
index 45994e16..4bb40980 100644
--- a/pyrogram/client/types/messages_and_media/document.py
+++ b/pyrogram/client/types/messages_and_media/document.py
@@ -49,8 +49,6 @@ class Document(Object):
             Document thumbnails as defined by sender.
     """
 
-    __slots__ = ["file_id", "file_name", "mime_type", "file_size", "date", "thumbs"]
-
     def __init__(
         self,
         *,
diff --git a/pyrogram/client/types/messages_and_media/game.py b/pyrogram/client/types/messages_and_media/game.py
index 2b400e65..38c00fdf 100644
--- a/pyrogram/client/types/messages_and_media/game.py
+++ b/pyrogram/client/types/messages_and_media/game.py
@@ -48,8 +48,6 @@ class Game(Object):
             Upload via BotFather.
     """
 
-    __slots__ = ["id", "title", "short_name", "description", "photo", "animation"]
-
     def __init__(
         self,
         *,
diff --git a/pyrogram/client/types/messages_and_media/location.py b/pyrogram/client/types/messages_and_media/location.py
index 5af55f0f..4dec0277 100644
--- a/pyrogram/client/types/messages_and_media/location.py
+++ b/pyrogram/client/types/messages_and_media/location.py
@@ -33,8 +33,6 @@ class Location(Object):
             Latitude as defined by sender.
     """
 
-    __slots__ = ["longitude", "latitude"]
-
     def __init__(
         self,
         *,
diff --git a/pyrogram/client/types/messages_and_media/message.py b/pyrogram/client/types/messages_and_media/message.py
index 43041ee6..58c461bd 100644
--- a/pyrogram/client/types/messages_and_media/message.py
+++ b/pyrogram/client/types/messages_and_media/message.py
@@ -31,7 +31,8 @@ from ..object import Object
 from ..update import Update
 from ..user_and_chats.chat import Chat
 from ..user_and_chats.user import User
-from ...parser import utils, Parser
+from ...ext import utils
+from ...parser import utils as parser_utils, Parser
 
 
 class Str(str):
@@ -54,7 +55,7 @@ class Str(str):
         return Parser.unparse(self, self.entities, True)
 
     def __getitem__(self, item):
-        return utils.remove_surrogates(utils.add_surrogates(self)[item])
+        return parser_utils.remove_surrogates(parser_utils.add_surrogates(self)[item])
 
 
 class Message(Object, Update):
@@ -263,17 +264,6 @@ class Message(Object, Update):
 
     # TODO: Add game missing field. Also invoice, successful_payment, connected_website
 
-    __slots__ = [
-        "message_id", "date", "chat", "from_user", "forward_from", "forward_sender_name", "forward_from_chat",
-        "forward_from_message_id", "forward_signature", "forward_date", "reply_to_message", "mentioned", "empty",
-        "service", "media", "edit_date", "media_group_id", "author_signature", "text", "entities", "caption_entities",
-        "audio", "document", "photo", "sticker", "animation", "game", "video", "voice", "video_note", "caption",
-        "contact", "location", "venue", "web_page", "poll", "new_chat_members", "left_chat_member", "new_chat_title",
-        "new_chat_photo", "delete_chat_photo", "group_chat_created", "supergroup_chat_created", "channel_chat_created",
-        "migrate_to_chat_id", "migrate_from_chat_id", "pinned_message", "game_high_score", "views", "via_bot",
-        "outgoing", "matches", "command", "reply_markup"
-    ]
-
     def __init__(
         self,
         *,
@@ -446,7 +436,7 @@ class Message(Object, Update):
                 new_chat_title=new_chat_title,
                 new_chat_photo=new_chat_photo,
                 delete_chat_photo=delete_chat_photo,
-                migrate_to_chat_id=int("-100" + str(migrate_to_chat_id)) if migrate_to_chat_id else None,
+                migrate_to_chat_id=utils.get_channel_id(migrate_to_chat_id) if migrate_to_chat_id else None,
                 migrate_from_chat_id=-migrate_from_chat_id if migrate_from_chat_id else None,
                 group_chat_created=group_chat_created,
                 channel_chat_created=channel_chat_created,
@@ -602,10 +592,26 @@ class Message(Object, Update):
                 date=message.date,
                 chat=Chat._parse(client, message, users, chats),
                 from_user=User._parse(client, users.get(message.from_id, None)),
-                text=Str(message.message).init(entities) or None if media is None else None,
-                caption=Str(message.message).init(entities) or None if media is not None else None,
-                entities=entities or None if media is None else None,
-                caption_entities=entities or None if media is not None else None,
+                text=(
+                    Str(message.message).init(entities) or None
+                    if media is None or web_page is not None
+                    else None
+                ),
+                caption=(
+                    Str(message.message).init(entities) or None
+                    if media is not None and web_page is None
+                    else None
+                ),
+                entities=(
+                    entities or None
+                    if media is None or web_page is not None
+                    else None
+                ),
+                caption_entities=(
+                    entities or None
+                    if media is not None and web_page is None
+                    else None
+                ),
                 author_signature=message.post_author,
                 forward_from=forward_from,
                 forward_sender_name=forward_sender_name,
diff --git a/pyrogram/client/types/messages_and_media/message_entity.py b/pyrogram/client/types/messages_and_media/message_entity.py
index 1c3076a2..63aeb447 100644
--- a/pyrogram/client/types/messages_and_media/message_entity.py
+++ b/pyrogram/client/types/messages_and_media/message_entity.py
@@ -47,8 +47,6 @@ class MessageEntity(Object):
             For "text_mention" only, the mentioned user.
     """
 
-    __slots__ = ["type", "offset", "length", "url", "user"]
-
     ENTITIES = {
         types.MessageEntityMention.ID: "mention",
         types.MessageEntityHashtag.ID: "hashtag",
diff --git a/pyrogram/client/types/messages_and_media/photo.py b/pyrogram/client/types/messages_and_media/photo.py
index 653fe4c0..8ccaaf19 100644
--- a/pyrogram/client/types/messages_and_media/photo.py
+++ b/pyrogram/client/types/messages_and_media/photo.py
@@ -49,8 +49,6 @@ class Photo(Object):
             Available thumbnails of this photo.
     """
 
-    __slots__ = ["file_id", "width", "height", "file_size", "date", "thumbs"]
-
     def __init__(
         self,
         *,
diff --git a/pyrogram/client/types/messages_and_media/poll.py b/pyrogram/client/types/messages_and_media/poll.py
index 2570fdf1..fecc5f7d 100644
--- a/pyrogram/client/types/messages_and_media/poll.py
+++ b/pyrogram/client/types/messages_and_media/poll.py
@@ -48,8 +48,6 @@ class Poll(Object, Update):
             Index of your chosen option (0-9), None in case you haven't voted yet.
     """
 
-    __slots__ = ["id", "question", "options", "is_closed", "total_voters", "chosen_option"]
-
     def __init__(
         self,
         *,
diff --git a/pyrogram/client/types/messages_and_media/poll_option.py b/pyrogram/client/types/messages_and_media/poll_option.py
index 35f6b071..2882860a 100644
--- a/pyrogram/client/types/messages_and_media/poll_option.py
+++ b/pyrogram/client/types/messages_and_media/poll_option.py
@@ -35,8 +35,6 @@ class PollOption(Object):
             The data this poll option is holding.
     """
 
-    __slots__ = ["text", "voter_count", "data"]
-
     def __init__(
         self,
         *,
diff --git a/pyrogram/client/types/messages_and_media/sticker.py b/pyrogram/client/types/messages_and_media/sticker.py
index 6460cd81..4a9f6d8c 100644
--- a/pyrogram/client/types/messages_and_media/sticker.py
+++ b/pyrogram/client/types/messages_and_media/sticker.py
@@ -66,10 +66,6 @@ class Sticker(Object):
 
     # TODO: Add mask position
 
-    __slots__ = [
-        "file_id", "file_name", "mime_type", "file_size", "date", "width", "height", "emoji", "set_name", "thumbs"
-    ]
-
     def __init__(
         self,
         *,
diff --git a/pyrogram/client/types/messages_and_media/stripped_thumbnail.py b/pyrogram/client/types/messages_and_media/stripped_thumbnail.py
index 1c967042..ea24e071 100644
--- a/pyrogram/client/types/messages_and_media/stripped_thumbnail.py
+++ b/pyrogram/client/types/messages_and_media/stripped_thumbnail.py
@@ -29,8 +29,6 @@ class StrippedThumbnail(Object):
             Thumbnail data
     """
 
-    __slots__ = ["data"]
-
     def __init__(
         self,
         *,
diff --git a/pyrogram/client/types/messages_and_media/thumbnail.py b/pyrogram/client/types/messages_and_media/thumbnail.py
index ee173b1c..936241c6 100644
--- a/pyrogram/client/types/messages_and_media/thumbnail.py
+++ b/pyrogram/client/types/messages_and_media/thumbnail.py
@@ -43,8 +43,6 @@ class Thumbnail(Object):
             File size.
     """
 
-    __slots__ = ["file_id", "width", "height", "file_size"]
-
     def __init__(
         self,
         *,
diff --git a/pyrogram/client/types/messages_and_media/venue.py b/pyrogram/client/types/messages_and_media/venue.py
index 45d9368f..419af318 100644
--- a/pyrogram/client/types/messages_and_media/venue.py
+++ b/pyrogram/client/types/messages_and_media/venue.py
@@ -44,8 +44,6 @@ class Venue(Object):
 
     """
 
-    __slots__ = ["location", "title", "address", "foursquare_id", "foursquare_type"]
-
     def __init__(
         self,
         *,
diff --git a/pyrogram/client/types/messages_and_media/video.py b/pyrogram/client/types/messages_and_media/video.py
index 0a7f47cd..d9c2c37f 100644
--- a/pyrogram/client/types/messages_and_media/video.py
+++ b/pyrogram/client/types/messages_and_media/video.py
@@ -61,11 +61,6 @@ class Video(Object):
             Video thumbnails.
     """
 
-    __slots__ = [
-        "file_id", "width", "height", "duration", "file_name", "mime_type", "supports_streaming", "file_size", "date",
-        "thumbs"
-    ]
-
     def __init__(
         self,
         *,
diff --git a/pyrogram/client/types/messages_and_media/video_note.py b/pyrogram/client/types/messages_and_media/video_note.py
index 54c9ec8d..e419d692 100644
--- a/pyrogram/client/types/messages_and_media/video_note.py
+++ b/pyrogram/client/types/messages_and_media/video_note.py
@@ -52,8 +52,6 @@ class VideoNote(Object):
             Video thumbnails.
     """
 
-    __slots__ = ["file_id", "mime_type", "file_size", "date", "length", "duration", "thumbs"]
-
     def __init__(
         self,
         *,
diff --git a/pyrogram/client/types/messages_and_media/voice.py b/pyrogram/client/types/messages_and_media/voice.py
index e4256197..0f480ad5 100644
--- a/pyrogram/client/types/messages_and_media/voice.py
+++ b/pyrogram/client/types/messages_and_media/voice.py
@@ -47,8 +47,6 @@ class Voice(Object):
             Date the voice was sent in Unix time.
     """
 
-    __slots__ = ["file_id", "duration", "waveform", "mime_type", "file_size", "date"]
-
     def __init__(
         self,
         *,
diff --git a/pyrogram/client/types/messages_and_media/webpage.py b/pyrogram/client/types/messages_and_media/webpage.py
index 9ddc7c6c..d65d34d8 100644
--- a/pyrogram/client/types/messages_and_media/webpage.py
+++ b/pyrogram/client/types/messages_and_media/webpage.py
@@ -83,12 +83,6 @@ class WebPage(Object):
             Author of the webpage, eg the Twitter user for a tweet, or the author in an article.
     """
 
-    __slots__ = [
-        "id", "url", "display_url", "type", "site_name", "title", "description",
-        "audio", "document", "photo", "animation", "video",
-        "embed_url", "embed_type", "embed_width", "embed_height", "duration", "author"
-    ]
-
     def __init__(
         self,
         *,
diff --git a/pyrogram/client/types/object.py b/pyrogram/client/types/object.py
index f7fc413f..5978203f 100644
--- a/pyrogram/client/types/object.py
+++ b/pyrogram/client/types/object.py
@@ -29,8 +29,6 @@ class Meta(type, metaclass=type("", (type,), {"__str__": lambda _: "~hi"})):
 
 
 class Object(metaclass=Meta):
-    __slots__ = ["_client"]
-
     def __init__(self, client: "pyrogram.BaseClient" = None):
         self._client = client
 
@@ -50,7 +48,7 @@ class Object(metaclass=Meta):
                 else (attr, str(datetime.fromtimestamp(getattr(obj, attr))))
                 if attr.endswith("date")
                 else (attr, getattr(obj, attr))
-                for attr in getattr(obj, "__slots__", [])
+                for attr in filter(lambda x: not x.startswith("_"), obj.__dict__)
                 if getattr(obj, attr) is not None
             ]
         )
@@ -63,13 +61,13 @@ class Object(metaclass=Meta):
             self.__class__.__name__,
             ", ".join(
                 "{}={}".format(attr, repr(getattr(self, attr)))
-                for attr in self.__slots__
+                for attr in filter(lambda x: not x.startswith("_"), self.__dict__)
                 if getattr(self, attr) is not None
             )
         )
 
     def __eq__(self, other: "Object") -> bool:
-        for attr in self.__slots__:
+        for attr in self.__dict__:
             try:
                 if getattr(self, attr) != getattr(other, attr):
                     return False
diff --git a/pyrogram/client/types/update.py b/pyrogram/client/types/update.py
index f129b4ce..37307111 100644
--- a/pyrogram/client/types/update.py
+++ b/pyrogram/client/types/update.py
@@ -26,8 +26,6 @@ class ContinuePropagation(StopAsyncIteration):
 
 
 class Update:
-    __slots__ = []
-
     def stop_propagation(self):
         raise StopPropagation
 
diff --git a/pyrogram/client/types/user_and_chats/chat.py b/pyrogram/client/types/user_and_chats/chat.py
index a4d51d1f..d3606b82 100644
--- a/pyrogram/client/types/user_and_chats/chat.py
+++ b/pyrogram/client/types/user_and_chats/chat.py
@@ -23,6 +23,7 @@ from pyrogram.api import types
 from .chat_permissions import ChatPermissions
 from .chat_photo import ChatPhoto
 from ..object import Object
+from ...ext import utils
 
 
 class Chat(Object):
@@ -94,12 +95,6 @@ class Chat(Object):
             Information about the chat default permissions, for groups and supergroups.
     """
 
-    __slots__ = [
-        "id", "type", "is_verified", "is_restricted", "is_scam", "is_support", "title", "username", "first_name",
-        "last_name", "photo", "description", "invite_link", "pinned_message", "sticker_set_name", "can_set_sticker_set",
-        "members_count", "restriction_reason", "permissions"
-    ]
-
     def __init__(
         self,
         *,
@@ -180,7 +175,7 @@ class Chat(Object):
 
     @staticmethod
     def _parse_channel_chat(client, channel: types.Channel) -> "Chat":
-        peer_id = int("-100" + str(channel.id))
+        peer_id = utils.get_channel_id(channel.id)
 
         return Chat(
             id=peer_id,
diff --git a/pyrogram/client/types/user_and_chats/chat_member.py b/pyrogram/client/types/user_and_chats/chat_member.py
index 7451012c..42eb08f3 100644
--- a/pyrogram/client/types/user_and_chats/chat_member.py
+++ b/pyrogram/client/types/user_and_chats/chat_member.py
@@ -54,8 +54,6 @@ class ChatMember(Object):
             Information about the member permissions.
     """
 
-    __slots__ = ["user", "status", "date", "is_member", "invited_by", "promoted_by", "restricted_by", "permissions"]
-
     def __init__(
         self,
         *,
diff --git a/pyrogram/client/types/user_and_chats/chat_permissions.py b/pyrogram/client/types/user_and_chats/chat_permissions.py
index 84099955..551dc667 100644
--- a/pyrogram/client/types/user_and_chats/chat_permissions.py
+++ b/pyrogram/client/types/user_and_chats/chat_permissions.py
@@ -94,13 +94,6 @@ class ChatPermissions(Object):
             True, if polls can be sent, implies can_send_media_messages.
     """
 
-    __slots__ = [
-        "until_date", "can_be_edited", "can_change_info", "can_post_messages", "can_edit_messages",
-        "can_delete_messages", "can_restrict_members", "can_invite_users", "can_pin_messages", "can_promote_members",
-        "can_send_messages", "can_send_media_messages", "can_send_other_messages", "can_add_web_page_previews",
-        "can_send_polls"
-    ]
-
     def __init__(
         self,
         *,
diff --git a/pyrogram/client/types/user_and_chats/chat_photo.py b/pyrogram/client/types/user_and_chats/chat_photo.py
index 1584a286..70e114af 100644
--- a/pyrogram/client/types/user_and_chats/chat_photo.py
+++ b/pyrogram/client/types/user_and_chats/chat_photo.py
@@ -35,8 +35,6 @@ class ChatPhoto(Object):
             Unique file identifier of big (640x640) chat photo. This file_id can be used only for photo download.
     """
 
-    __slots__ = ["small_file_id", "big_file_id"]
-
     def __init__(
         self,
         *,
diff --git a/pyrogram/client/types/user_and_chats/chat_preview.py b/pyrogram/client/types/user_and_chats/chat_preview.py
index 781f85c8..10754170 100644
--- a/pyrogram/client/types/user_and_chats/chat_preview.py
+++ b/pyrogram/client/types/user_and_chats/chat_preview.py
@@ -45,8 +45,6 @@ class ChatPreview(Object):
             Preview of some of the chat members.
     """
 
-    __slots__ = ["title", "type", "members_count", "photo", "members"]
-
     def __init__(
         self,
         *,
diff --git a/pyrogram/client/types/user_and_chats/dialog.py b/pyrogram/client/types/user_and_chats/dialog.py
index 4ea82184..471c4319 100644
--- a/pyrogram/client/types/user_and_chats/dialog.py
+++ b/pyrogram/client/types/user_and_chats/dialog.py
@@ -21,6 +21,7 @@ import pyrogram
 from pyrogram.api import types
 from ..object import Object
 from ..user_and_chats import Chat
+from ...ext import utils
 
 
 class Dialog(Object):
@@ -46,8 +47,6 @@ class Dialog(Object):
             True, if the dialog is pinned.
     """
 
-    __slots__ = ["chat", "top_message", "unread_messages_count", "unread_mentions_count", "unread_mark", "is_pinned"]
-
     def __init__(
         self,
         *,
@@ -70,18 +69,9 @@ class Dialog(Object):
 
     @staticmethod
     def _parse(client, dialog: types.Dialog, messages, users, chats) -> "Dialog":
-        chat_id = dialog.peer
-
-        if isinstance(chat_id, types.PeerUser):
-            chat_id = chat_id.user_id
-        elif isinstance(chat_id, types.PeerChat):
-            chat_id = -chat_id.chat_id
-        else:
-            chat_id = int("-100" + str(chat_id.channel_id))
-
         return Dialog(
             chat=Chat._parse_dialog(client, dialog.peer, users, chats),
-            top_message=messages.get(chat_id),
+            top_message=messages.get(utils.get_peer_id(dialog.peer)),
             unread_messages_count=dialog.unread_count,
             unread_mentions_count=dialog.unread_mentions_count,
             unread_mark=dialog.unread_mark,
diff --git a/pyrogram/client/types/user_and_chats/user.py b/pyrogram/client/types/user_and_chats/user.py
index b0bc1bfe..bfc1fc08 100644
--- a/pyrogram/client/types/user_and_chats/user.py
+++ b/pyrogram/client/types/user_and_chats/user.py
@@ -106,12 +106,6 @@ class User(Object, Update):
             This field is available only in case *is_restricted* is True.
     """
 
-    __slots__ = [
-        "id", "is_self", "is_contact", "is_mutual_contact", "is_deleted", "is_bot", "is_verified", "is_restricted",
-        "is_scam", "is_support", "first_name", "last_name", "status", "last_online_date", "next_offline_date",
-        "username", "language_code", "dc_id", "phone_number", "photo", "restriction_reason"
-    ]
-
     def __init__(
         self,
         *,
diff --git a/pyrogram/errors/rpc_error.py b/pyrogram/errors/rpc_error.py
index 806b5373..9969d3fa 100644
--- a/pyrogram/errors/rpc_error.py
+++ b/pyrogram/errors/rpc_error.py
@@ -21,8 +21,9 @@ from datetime import datetime
 from importlib import import_module
 from typing import Type
 
-from pyrogram.api.core import TLObject
 from pyrogram.api.types import RpcError as RawRPCError
+
+from pyrogram.api.core import TLObject
 from .exceptions.all import exceptions
 
 
diff --git a/pyrogram/session/auth.py b/pyrogram/session/auth.py
index 135100e2..ba0f5aed 100644
--- a/pyrogram/session/auth.py
+++ b/pyrogram/session/auth.py
@@ -28,7 +28,6 @@ from pyrogram.api import functions, types
 from pyrogram.api.core import TLObject, Long, Int
 from pyrogram.connection import Connection
 from pyrogram.crypto import AES, RSA, Prime
-
 from .internals import MsgId
 
 log = logging.getLogger(__name__)
diff --git a/pyrogram/session/internals/msg_factory.py b/pyrogram/session/internals/msg_factory.py
index 2b833ce8..453eefc1 100644
--- a/pyrogram/session/internals/msg_factory.py
+++ b/pyrogram/session/internals/msg_factory.py
@@ -16,9 +16,10 @@
 # You should have received a copy of the GNU Lesser General Public License
 # along with Pyrogram.  If not, see <http://www.gnu.org/licenses/>.
 
-from pyrogram.api.core import Message, MsgContainer, TLObject
 from pyrogram.api.functions import Ping
 from pyrogram.api.types import MsgsAck, HttpWait
+
+from pyrogram.api.core import Message, MsgContainer, TLObject
 from .msg_id import MsgId
 from .seq_no import SeqNo
 
diff --git a/pyrogram/session/session.py b/pyrogram/session/session.py
index e4699f7d..a0d879b4 100644
--- a/pyrogram/session/session.py
+++ b/pyrogram/session/session.py
@@ -22,15 +22,15 @@ from datetime import datetime, timedelta
 from hashlib import sha1
 from io import BytesIO
 
+from pyrogram.api.all import layer
+
 import pyrogram
 from pyrogram import __copyright__, __license__, __version__
 from pyrogram.api import functions, types
-from pyrogram.api.all import layer
 from pyrogram.api.core import TLObject, MsgContainer, Int, Long, FutureSalt, FutureSalts
 from pyrogram.connection import Connection
 from pyrogram.crypto import MTProto
 from pyrogram.errors import RPCError, InternalServerError, AuthKeyDuplicated
-
 from .internals import MsgId, MsgFactory
 
 log = logging.getLogger(__name__)