diff --git a/aiogram/bot.py b/aiogram/bot.py
index 5859810f..b6c35c1a 100644
--- a/aiogram/bot.py
+++ b/aiogram/bot.py
@@ -34,6 +34,10 @@ class AIOGramBot:
     def _on_exit(self):
         self.session.close()
 
+    def prepare_object(self, obj):
+        obj.bot = self
+        return obj
+
     @property
     async def me(self) -> User:
         if not hasattr(self, '_me'):
@@ -45,12 +49,12 @@ class AIOGramBot:
 
     async def get_me(self) -> User:
         raw = await self.request(ApiMethods.GET_ME)
-        return User.de_json(raw)
+        return self.prepare_object(User.de_json(raw))
 
     async def get_chat(self, chat_id) -> Chat:
         payload = generate_payload(**locals())
         raw = await self.request(ApiMethods.GET_CHAT, payload)
-        return Chat.de_json(raw)
+        return self.prepare_object(Chat.de_json(raw))
 
     async def get_updates(self, offset=None, limit=None, timeout=None, allowed_updates=None):
         """
@@ -64,4 +68,4 @@ class AIOGramBot:
         """
         payload = generate_payload(**locals())
         raw = await self.request(ApiMethods.GET_UPDATES, payload)
-        return [Update.de_json(raw_update) for raw_update in raw]
+        return [self.prepare_object(Update.de_json(raw_update)) for raw_update in raw]
diff --git a/aiogram/types/__init__.py b/aiogram/types/__init__.py
index afecda8c..3f63fac1 100644
--- a/aiogram/types/__init__.py
+++ b/aiogram/types/__init__.py
@@ -22,17 +22,29 @@ class Deserializable:
 
     def to_json(self):
         result = {}
-        for item in self.__slots__ or list(self.__dict__.keys()):
-            attr = getattr(self, item)
-            if not attr:
+        for name, attr in self.__dict__.items():
+            if not attr or name == '_bot':
                 continue
             if hasattr(attr, 'to_json'):
                 attr = getattr(attr, 'to_json')()
             elif isinstance(attr, datetime.datetime):
                 attr = int(time.mktime(attr.timetuple()))
-            result[item] = attr
+            result[name] = attr
         return result
 
+    @property
+    def bot(self):
+        if not hasattr(self, '_bot'):
+            raise AttributeError(f"{self.__class__.__name__} is not configured.")
+        return getattr(self, '_bot')
+
+    @bot.setter
+    def bot(self, bot):
+        setattr(self, '_bot', bot)
+        for name, attr in self.__dict__.items():
+            if isinstance(attr, Deserializable):
+                attr.bot = bot
+
     @classmethod
     def de_json(cls, raw_data):
         """
diff --git a/aiogram/types/audio.py b/aiogram/types/audio.py
index 7d22881b..746cf5c5 100644
--- a/aiogram/types/audio.py
+++ b/aiogram/types/audio.py
@@ -2,8 +2,6 @@ from . import Deserializable
 
 
 class Audio(Deserializable):
-    __slots__ = ('file_id', 'duration', 'performer', 'title', 'mime_type', 'file_size')
-
     def __init__(self, file_id, duration, performer, title, mime_type, file_size):
         self.file_id = file_id
         self.duration = duration
diff --git a/aiogram/types/callback_query.py b/aiogram/types/callback_query.py
index db7bdea1..33d451da 100644
--- a/aiogram/types/callback_query.py
+++ b/aiogram/types/callback_query.py
@@ -2,8 +2,6 @@ from . import Deserializable
 
 
 class CallbackQuery(Deserializable):
-    __slots__ = ('id', 'from_user', 'message', 'inline_message_id', 'chat_instance', 'data', 'game_short_name')
-
     def __init__(self, id, from_user, message, inline_message_id, chat_instance, data, game_short_name):
         self.data = data
         self.id = id
diff --git a/aiogram/types/chat.py b/aiogram/types/chat.py
index 00ad5af3..22362531 100644
--- a/aiogram/types/chat.py
+++ b/aiogram/types/chat.py
@@ -2,8 +2,6 @@ from . import Deserializable
 
 
 class Chat(Deserializable):
-    __slots__ = ('id', 'type', 'title', 'username', 'first_name', 'last_name', 'all_members_are_administrators')
-
     def __init__(self, id, type, title, username, first_name, last_name, all_members_are_administrators):
         self.id: int = id
         self.type: str = type
diff --git a/aiogram/types/chat_member.py b/aiogram/types/chat_member.py
index f7e1ecf7..3464d44e 100644
--- a/aiogram/types/chat_member.py
+++ b/aiogram/types/chat_member.py
@@ -2,8 +2,6 @@ from . import Deserializable
 
 
 class ChatMember(Deserializable):
-    __slots__ = ('user', 'status')
-
     def __init__(self, user, status):
         self.user = user
         self.status = status
@@ -16,19 +14,3 @@ class ChatMember(Deserializable):
         status = raw_data.get('status')
 
         return ChatMember(user, status)
-
-
-class ChatMemberStatus:
-    CREATOR = 'creator'
-    ADMINISTRATOR = 'administrator'
-    MEMBER = 'member'
-    LEFT = 'left'
-    KICKED = 'kicked'
-
-    @classmethod
-    def is_admin(cls, role):
-        return role in [cls.ADMINISTRATOR, cls.CREATOR]
-
-    @classmethod
-    def is_member(cls, role):
-        return role in [cls.MEMBER, cls.ADMINISTRATOR, cls.CREATOR]
diff --git a/aiogram/types/contact.py b/aiogram/types/contact.py
index 6895b978..630ce02a 100644
--- a/aiogram/types/contact.py
+++ b/aiogram/types/contact.py
@@ -2,8 +2,6 @@ from . import Deserializable
 
 
 class Contact(Deserializable):
-    __slots__ = ('phone_number', 'first_name', 'last_name', 'user_id')
-
     def __init__(self, phone_number, first_name, last_name, user_id):
         self.phone_number = phone_number
         self.first_name = first_name
diff --git a/aiogram/types/document.py b/aiogram/types/document.py
index a7126fe2..bef8eae7 100644
--- a/aiogram/types/document.py
+++ b/aiogram/types/document.py
@@ -2,8 +2,6 @@ from . import Deserializable
 
 
 class Document(Deserializable):
-    __slots__ = ('file_id', 'thumb', 'file_name', 'mime_type', 'file_size')
-
     def __init__(self, file_id, thumb, file_name, mime_type, file_size):
         self.file_id = file_id
         self.thumb = thumb
diff --git a/aiogram/types/file.py b/aiogram/types/file.py
index e276c01a..88234190 100644
--- a/aiogram/types/file.py
+++ b/aiogram/types/file.py
@@ -2,8 +2,6 @@ from . import Deserializable
 
 
 class File(Deserializable):
-    __slots__ = ('file_id', 'file_size', 'file_path')
-
     def __init__(self, file_id, file_size, file_path):
         self.file_id = file_id
         self.file_size = file_size
diff --git a/aiogram/types/location.py b/aiogram/types/location.py
index 3cb80766..6d78006f 100644
--- a/aiogram/types/location.py
+++ b/aiogram/types/location.py
@@ -2,9 +2,7 @@ from . import Deserializable
 
 
 class Location(Deserializable):
-    __slots__ = ('longitude', 'latitude')
-
-    def __init__(self, data, longitude, latitude):
+    def __init__(self, longitude, latitude):
         self.longitude = longitude
         self.latitude = latitude
 
diff --git a/aiogram/types/message.py b/aiogram/types/message.py
index 46a1852a..8138f357 100644
--- a/aiogram/types/message.py
+++ b/aiogram/types/message.py
@@ -7,14 +7,6 @@ from .user import User
 
 
 class Message(Deserializable):
-    __slots__ = (
-        'message_id', 'from_user', 'date', 'chat', 'forward_from', 'forward_from_chat', 'forward_from_message_id',
-        'forward_date', 'reply_to_message', 'edit_date', 'text', 'entities', 'audio', 'document', 'game', 'photo',
-        'sticker', 'video', 'voice', 'video_note', 'new_chat_members', 'caption', 'contact', 'location', 'venue',
-        'new_chat_member', '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', 'invoice', 'successful_payment', 'content_type')
-
     def __init__(self, message_id, from_user, date, chat, forward_from, forward_from_chat,
                  forward_from_message_id, forward_date, reply_to_message, edit_date, text, entities, audio, document,
                  game, photo, sticker, video, voice, video_note, new_chat_members, caption, contact, location, venue,
diff --git a/aiogram/types/message_entity.py b/aiogram/types/message_entity.py
index 561ff586..7da9444e 100644
--- a/aiogram/types/message_entity.py
+++ b/aiogram/types/message_entity.py
@@ -3,8 +3,6 @@ from .user import User
 
 
 class MessageEntity(Deserializable):
-    __slots__ = ('type', 'offset', 'length', 'url', 'user')
-
     def __init__(self, type, offset, length, url, user):
         self.type = type
         self.offset = offset
diff --git a/aiogram/types/photo_size.py b/aiogram/types/photo_size.py
index ac952b59..9f9b111a 100644
--- a/aiogram/types/photo_size.py
+++ b/aiogram/types/photo_size.py
@@ -2,8 +2,6 @@ from . import Deserializable
 
 
 class PhotoSize(Deserializable):
-    __slots__ = ('file_id', 'width', 'height', 'file_size')
-
     def __init__(self, file_id, width, height, file_size):
         self.file_id = file_id
         self.width = width
diff --git a/aiogram/types/sticker.py b/aiogram/types/sticker.py
index 839fb979..249b2aa9 100644
--- a/aiogram/types/sticker.py
+++ b/aiogram/types/sticker.py
@@ -2,8 +2,6 @@ from . import Deserializable
 
 
 class Sticker(Deserializable):
-    __slots__ = ('file_id', 'width', 'height', 'thumb', 'emoji', 'file_size')
-
     def __init__(self, file_id, width, height, thumb, emoji, file_size):
         self.file_id = file_id
         self.width = width
diff --git a/aiogram/types/update.py b/aiogram/types/update.py
index 21198c1a..17350120 100644
--- a/aiogram/types/update.py
+++ b/aiogram/types/update.py
@@ -3,9 +3,6 @@ from .message import Message
 
 
 class Update(Deserializable):
-    __slots__ = ('update_id', 'message', 'edited_message', 'channel_post', 'edited_channel_post', 'inline_query',
-                 'chosen_inline_result', 'callback_query', 'shipping_query', 'pre_checkout_query')
-
     def __init__(self, update_id, message, edited_message, channel_post, edited_channel_post, inline_query,
                  chosen_inline_result, callback_query, shipping_query, pre_checkout_query):
         self.update_id = update_id
diff --git a/aiogram/types/user.py b/aiogram/types/user.py
index fefd8f20..99747b4e 100644
--- a/aiogram/types/user.py
+++ b/aiogram/types/user.py
@@ -3,8 +3,6 @@ from ..utils.user_language import get_language
 
 
 class User(Deserializable):
-    __slots__ = ('id', 'first_name', 'last_name', 'username', 'language_code')
-
     def __init__(self, id, first_name, last_name, username, language_code):
         self.id: int = id
         self.first_name: str = first_name
diff --git a/aiogram/types/user_profile_photos.py b/aiogram/types/user_profile_photos.py
index ed4db003..234350f4 100644
--- a/aiogram/types/user_profile_photos.py
+++ b/aiogram/types/user_profile_photos.py
@@ -2,8 +2,6 @@ from . import Deserializable
 
 
 class UserProfilePhotos(Deserializable):
-    __slots__ = ('total_count', 'photos')
-
     def __init__(self, total_count, photos):
         self.total_count = total_count
         self.photos = photos
diff --git a/aiogram/types/venue.py b/aiogram/types/venue.py
index 0847da35..296f5d72 100644
--- a/aiogram/types/venue.py
+++ b/aiogram/types/venue.py
@@ -2,8 +2,6 @@ from . import Deserializable
 
 
 class Venue(Deserializable):
-    __slots__ = ('location', 'title', 'address', 'foursquare_id')
-
     def __init__(self, location, title, address, foursquare_id):
         self.location = location
         self.title = title
diff --git a/aiogram/types/video.py b/aiogram/types/video.py
index ae296af6..f160cee8 100644
--- a/aiogram/types/video.py
+++ b/aiogram/types/video.py
@@ -2,8 +2,6 @@ from . import Deserializable
 
 
 class Video(Deserializable):
-    __slots__ = ('file_id', 'width', 'height', 'duration', 'thumb', 'mime_type', 'file_size')
-
     def __init__(self, file_id, width, height, duration, thumb, mime_type, file_size):
         self.file_id = file_id
         self.width = width
diff --git a/aiogram/types/video_note.py b/aiogram/types/video_note.py
index dd2ff966..2318a08c 100644
--- a/aiogram/types/video_note.py
+++ b/aiogram/types/video_note.py
@@ -2,8 +2,6 @@ from . import Deserializable
 
 
 class VideoNote(Deserializable):
-    __slots__ = ('file_id', 'length', 'duration', 'thumb', 'file_size')
-
     def __init__(self, file_id, length, duration, thumb, file_size):
         self.file_id = file_id
         self.length = length
diff --git a/aiogram/types/voice.py b/aiogram/types/voice.py
index d8c84e5c..68a5022f 100644
--- a/aiogram/types/voice.py
+++ b/aiogram/types/voice.py
@@ -2,8 +2,6 @@ from . import Deserializable
 
 
 class Voice(Deserializable):
-    __slots__ = ('file_id', 'duration', 'mime_type', 'file_size')
-
     def __init__(self, file_id, duration, mime_type, file_size):
         self.file_id = file_id
         self.duration = duration