diff --git a/pyrogram/client/types/bots/callback_game.py b/pyrogram/client/types/bots/callback_game.py
index be026360..fc2d9884 100644
--- a/pyrogram/client/types/bots/callback_game.py
+++ b/pyrogram/client/types/bots/callback_game.py
@@ -25,5 +25,7 @@ class CallbackGame(PyrogramType):
     Use BotFather to set up your game.
     """
 
+    __slots__ = []
+
     def __init__(self):
         super().__init__(None)
diff --git a/pyrogram/client/types/bots/callback_query.py b/pyrogram/client/types/bots/callback_query.py
index c2558844..a7a9ad53 100644
--- a/pyrogram/client/types/bots/callback_query.py
+++ b/pyrogram/client/types/bots/callback_query.py
@@ -58,16 +58,20 @@ class CallbackQuery(PyrogramType, Update):
 
     """
 
-    def __init__(self,
-                 *,
-                 client: "pyrogram.client.ext.BaseClient",
-                 id: str,
-                 from_user: User,
-                 chat_instance: str,
-                 message: "pyrogram.Message" = None,
-                 inline_message_id: str = None,
-                 data: bytes = None,
-                 game_short_name: str = None):
+    __slots__ = ["id", "from_user", "chat_instance", "message", "inline_message_id", "data", "game_short_name"]
+
+    def __init__(
+            self,
+            *,
+            client: "pyrogram.client.ext.BaseClient",
+            id: str,
+            from_user: User,
+            chat_instance: str,
+            message: "pyrogram.Message" = None,
+            inline_message_id: str = None,
+            data: bytes = None,
+            game_short_name: str = None
+    ):
         super().__init__(client)
 
         self.id = id
diff --git a/pyrogram/client/types/bots/force_reply.py b/pyrogram/client/types/bots/force_reply.py
index 2e5c2f42..7838ee88 100644
--- a/pyrogram/client/types/bots/force_reply.py
+++ b/pyrogram/client/types/bots/force_reply.py
@@ -33,8 +33,12 @@ class ForceReply(PyrogramType):
             2) if the bot's message is a reply (has reply_to_message_id), sender of the original message.
     """
 
-    def __init__(self,
-                 selective: bool = None):
+    __slots__ = ["selective"]
+
+    def __init__(
+            self,
+            selective: bool = None
+    ):
         super().__init__(None)
 
         self.selective = selective
diff --git a/pyrogram/client/types/bots/game_high_score.py b/pyrogram/client/types/bots/game_high_score.py
index 0541c18c..4fc3c6f8 100644
--- a/pyrogram/client/types/bots/game_high_score.py
+++ b/pyrogram/client/types/bots/game_high_score.py
@@ -37,12 +37,16 @@ class GameHighScore(PyrogramType):
             Position in high score table for the game.
     """
 
-    def __init__(self,
-                 *,
-                 client: "pyrogram.client.ext.BaseClient",
-                 user: User,
-                 score: int,
-                 position: int = None):
+    __slots__ = ["user", "score", "position"]
+
+    def __init__(
+            self,
+            *,
+            client: "pyrogram.client.ext.BaseClient",
+            user: User,
+            score: int,
+            position: int = None
+    ):
         super().__init__(client)
 
         self.user = user
diff --git a/pyrogram/client/types/bots/game_high_scores.py b/pyrogram/client/types/bots/game_high_scores.py
index 1717effa..25e4af5d 100644
--- a/pyrogram/client/types/bots/game_high_scores.py
+++ b/pyrogram/client/types/bots/game_high_scores.py
@@ -35,11 +35,15 @@ class GameHighScores(PyrogramType):
             Game scores.
     """
 
-    def __init__(self,
-                 *,
-                 client: "pyrogram.client.ext.BaseClient",
-                 total_count: int,
-                 game_high_scores: List[GameHighScore]):
+    __slots__ = ["total_count", "game_high_scores"]
+
+    def __init__(
+            self,
+            *,
+            client: "pyrogram.client.ext.BaseClient",
+            total_count: int,
+            game_high_scores: List[GameHighScore]
+    ):
         super().__init__(client)
 
         self.total_count = total_count
diff --git a/pyrogram/client/types/bots/inline_keyboard_button.py b/pyrogram/client/types/bots/inline_keyboard_button.py
index cc829cb1..505b7c87 100644
--- a/pyrogram/client/types/bots/inline_keyboard_button.py
+++ b/pyrogram/client/types/bots/inline_keyboard_button.py
@@ -54,13 +54,19 @@ class InlineKeyboardButton(PyrogramType):
 
     # TODO: Add callback_game and pay fields
 
-    def __init__(self,
-                 text: str,
-                 callback_data: bytes = None,
-                 url: str = None,
-                 switch_inline_query: str = None,
-                 switch_inline_query_current_chat: str = None,
-                 callback_game: CallbackGame = None):
+    __slots__ = [
+        "text", "url", "callback_data", "switch_inline_query", "switch_inline_query_current_chat", "callback_game"
+    ]
+
+    def __init__(
+            self,
+            text: str,
+            callback_data: bytes = None,
+            url: str = None,
+            switch_inline_query: str = None,
+            switch_inline_query_current_chat: str = None,
+            callback_game: CallbackGame = None
+    ):
         super().__init__(None)
 
         self.text = str(text)
diff --git a/pyrogram/client/types/bots/inline_keyboard_markup.py b/pyrogram/client/types/bots/inline_keyboard_markup.py
index f18bd605..cb5327b1 100644
--- a/pyrogram/client/types/bots/inline_keyboard_markup.py
+++ b/pyrogram/client/types/bots/inline_keyboard_markup.py
@@ -31,8 +31,12 @@ class InlineKeyboardMarkup(PyrogramType):
             List of button rows, each represented by a List of InlineKeyboardButton objects.
     """
 
-    def __init__(self,
-                 inline_keyboard: List[List[InlineKeyboardButton]]):
+    __slots__ = ["inline_keyboard"]
+
+    def __init__(
+            self,
+            inline_keyboard: List[List[InlineKeyboardButton]]
+    ):
         super().__init__(None)
 
         self.inline_keyboard = inline_keyboard
diff --git a/pyrogram/client/types/bots/keyboard_button.py b/pyrogram/client/types/bots/keyboard_button.py
index 3c7c2bd6..dc4ed1e7 100644
--- a/pyrogram/client/types/bots/keyboard_button.py
+++ b/pyrogram/client/types/bots/keyboard_button.py
@@ -40,10 +40,14 @@ class KeyboardButton(PyrogramType):
             Available in private chats only.
     """
 
-    def __init__(self,
-                 text: str,
-                 request_contact: bool = None,
-                 request_location: bool = None):
+    __slots__ = ["text", "request_contact", "request_location"]
+
+    def __init__(
+            self,
+            text: str,
+            request_contact: bool = None,
+            request_location: bool = None
+    ):
         super().__init__(None)
 
         self.text = str(text)
diff --git a/pyrogram/client/types/bots/reply_keyboard_markup.py b/pyrogram/client/types/bots/reply_keyboard_markup.py
index afae236d..229899d0 100644
--- a/pyrogram/client/types/bots/reply_keyboard_markup.py
+++ b/pyrogram/client/types/bots/reply_keyboard_markup.py
@@ -49,11 +49,15 @@ class ReplyKeyboardMarkup(PyrogramType):
             select the new language. Other users in the group don't see the keyboard.
     """
 
-    def __init__(self,
-                 keyboard: List[List[Union[KeyboardButton, str]]],
-                 resize_keyboard: bool = None,
-                 one_time_keyboard: bool = None,
-                 selective: bool = None):
+    __slots__ = ["keyboard", "resize_keyboard", "one_time_keyboard", "selective"]
+
+    def __init__(
+            self,
+            keyboard: List[List[Union[KeyboardButton, str]]],
+            resize_keyboard: bool = None,
+            one_time_keyboard: bool = None,
+            selective: bool = None
+    ):
         super().__init__(None)
 
         self.keyboard = keyboard
diff --git a/pyrogram/client/types/bots/reply_keyboard_remove.py b/pyrogram/client/types/bots/reply_keyboard_remove.py
index 5b67fbb4..2fb5fe19 100644
--- a/pyrogram/client/types/bots/reply_keyboard_remove.py
+++ b/pyrogram/client/types/bots/reply_keyboard_remove.py
@@ -35,8 +35,12 @@ class ReplyKeyboardRemove(PyrogramType):
             keyboard for that user, while still showing the keyboard with poll options to users who haven't voted yet.
     """
 
-    def __init__(self,
-                 selective: bool = None):
+    __slots__ = ["selective"]
+
+    def __init__(
+            self,
+            selective: bool = None
+    ):
         super().__init__(None)
 
         self.selective = selective
diff --git a/pyrogram/client/types/input_media/input_media.py b/pyrogram/client/types/input_media/input_media.py
index f55d8aa0..677d4918 100644
--- a/pyrogram/client/types/input_media/input_media.py
+++ b/pyrogram/client/types/input_media/input_media.py
@@ -18,10 +18,14 @@
 
 
 class InputMedia:
-    def __init__(self,
-                 media: str,
-                 caption: str,
-                 parse_mode: str):
+    __slots__ = ["media", "caption", "parse_mode"]
+
+    def __init__(
+            self,
+            media: str,
+            caption: str,
+            parse_mode: str
+    ):
         self.media = media
         self.caption = caption
         self.parse_mode = parse_mode
diff --git a/pyrogram/client/types/input_media/input_media_animation.py b/pyrogram/client/types/input_media/input_media_animation.py
index af0c2b2a..20debb19 100644
--- a/pyrogram/client/types/input_media/input_media_animation.py
+++ b/pyrogram/client/types/input_media/input_media_animation.py
@@ -52,14 +52,18 @@ class InputMediaAnimation(InputMedia):
             Animation duration.
     """
 
-    def __init__(self,
-                 media: str,
-                 thumb: str = None,
-                 caption: str = "",
-                 parse_mode: str = "",
-                 width: int = 0,
-                 height: int = 0,
-                 duration: int = 0):
+    __slots__ = ["thumb", "width", "height", "duration"]
+
+    def __init__(
+            self,
+            media: str,
+            thumb: str = None,
+            caption: str = "",
+            parse_mode: str = "",
+            width: int = 0,
+            height: int = 0,
+            duration: int = 0
+    ):
         super().__init__(media, caption, parse_mode)
 
         self.thumb = thumb
diff --git a/pyrogram/client/types/input_media/input_media_audio.py b/pyrogram/client/types/input_media/input_media_audio.py
index a2dc18db..2709a409 100644
--- a/pyrogram/client/types/input_media/input_media_audio.py
+++ b/pyrogram/client/types/input_media/input_media_audio.py
@@ -53,14 +53,18 @@ class InputMediaAudio(InputMedia):
             Title of the audio
     """
 
-    def __init__(self,
-                 media: str,
-                 thumb: str = None,
-                 caption: str = "",
-                 parse_mode: str = "",
-                 duration: int = 0,
-                 performer: int = "",
-                 title: str = ""):
+    __slots__ = ["thumb", "duration", "performer", "title"]
+
+    def __init__(
+            self,
+            media: str,
+            thumb: str = None,
+            caption: str = "",
+            parse_mode: str = "",
+            duration: int = 0,
+            performer: int = "",
+            title: str = ""
+    ):
         super().__init__(media, caption, parse_mode)
 
         self.thumb = thumb
diff --git a/pyrogram/client/types/input_media/input_media_document.py b/pyrogram/client/types/input_media/input_media_document.py
index 25e17d0f..2c0c628d 100644
--- a/pyrogram/client/types/input_media/input_media_document.py
+++ b/pyrogram/client/types/input_media/input_media_document.py
@@ -43,11 +43,15 @@ class InputMediaDocument(InputMedia):
             Defaults to Markdown.
     """
 
-    def __init__(self,
-                 media: str,
-                 thumb: str = None,
-                 caption: str = "",
-                 parse_mode: str = ""):
+    __slots__ = ["thumb"]
+
+    def __init__(
+            self,
+            media: str,
+            thumb: str = None,
+            caption: str = "",
+            parse_mode: str = ""
+    ):
         super().__init__(media, caption, parse_mode)
 
         self.thumb = thumb
diff --git a/pyrogram/client/types/input_media/input_media_photo.py b/pyrogram/client/types/input_media/input_media_photo.py
index 5917fbf0..5618b843 100644
--- a/pyrogram/client/types/input_media/input_media_photo.py
+++ b/pyrogram/client/types/input_media/input_media_photo.py
@@ -39,8 +39,12 @@ class InputMediaPhoto(InputMedia):
             Defaults to Markdown.
     """
 
-    def __init__(self,
-                 media: str,
-                 caption: str = "",
-                 parse_mode: str = ""):
+    __slots__ = []
+
+    def __init__(
+            self,
+            media: str,
+            caption: str = "",
+            parse_mode: str = ""
+    ):
         super().__init__(media, caption, parse_mode)
diff --git a/pyrogram/client/types/input_media/input_media_video.py b/pyrogram/client/types/input_media/input_media_video.py
index 6fa7936e..b55a9438 100644
--- a/pyrogram/client/types/input_media/input_media_video.py
+++ b/pyrogram/client/types/input_media/input_media_video.py
@@ -57,15 +57,19 @@ class InputMediaVideo(InputMedia):
             Pass True, if the uploaded video is suitable for streaming.
     """
 
-    def __init__(self,
-                 media: str,
-                 thumb: str = None,
-                 caption: str = "",
-                 parse_mode: str = "",
-                 width: int = 0,
-                 height: int = 0,
-                 duration: int = 0,
-                 supports_streaming: bool = True):
+    __slots__ = ["thumb", "width", "height", "duration", "supports_streaming"]
+
+    def __init__(
+            self,
+            media: str,
+            thumb: str = None,
+            caption: str = "",
+            parse_mode: str = "",
+            width: int = 0,
+            height: int = 0,
+            duration: int = 0,
+            supports_streaming: bool = True
+    ):
         super().__init__(media, caption, parse_mode)
 
         self.thumb = thumb
diff --git a/pyrogram/client/types/input_media/input_phone_contact.py b/pyrogram/client/types/input_media/input_phone_contact.py
index 1a89759a..340b335f 100644
--- a/pyrogram/client/types/input_media/input_phone_contact.py
+++ b/pyrogram/client/types/input_media/input_phone_contact.py
@@ -35,10 +35,14 @@ class InputPhoneContact:
             Contact's last name
     """
 
-    def __init__(self,
-                 phone: str,
-                 first_name: str,
-                 last_name: str = ""):
+    __slots__ = []
+
+    def __init__(
+            self,
+            phone: str,
+            first_name: str,
+            last_name: str = ""
+    ):
         pass
 
     def __new__(cls,
diff --git a/pyrogram/client/types/messages_and_media/animation.py b/pyrogram/client/types/messages_and_media/animation.py
index 9f3ba886..978c88c9 100644
--- a/pyrogram/client/types/messages_and_media/animation.py
+++ b/pyrogram/client/types/messages_and_media/animation.py
@@ -57,18 +57,22 @@ class Animation(PyrogramType):
             Date the animation was sent in Unix time.
     """
 
-    def __init__(self,
-                 *,
-                 client: "pyrogram.client.ext.BaseClient",
-                 file_id: str,
-                 width: int,
-                 height: int,
-                 duration: int,
-                 thumb: PhotoSize = None,
-                 file_name: str = None,
-                 mime_type: str = None,
-                 file_size: int = None,
-                 date: int = None):
+    __slots__ = ["file_id", "thumb", "file_name", "mime_type", "file_size", "date", "width", "height", "duration"]
+
+    def __init__(
+            self,
+            *,
+            client: "pyrogram.client.ext.BaseClient",
+            file_id: str,
+            width: int,
+            height: int,
+            duration: int,
+            thumb: PhotoSize = None,
+            file_name: str = None,
+            mime_type: str = None,
+            file_size: int = None,
+            date: int = None
+    ):
         super().__init__(client)
 
         self.file_id = file_id
diff --git a/pyrogram/client/types/messages_and_media/audio.py b/pyrogram/client/types/messages_and_media/audio.py
index 9c5698f1..334e022e 100644
--- a/pyrogram/client/types/messages_and_media/audio.py
+++ b/pyrogram/client/types/messages_and_media/audio.py
@@ -57,18 +57,22 @@ class Audio(PyrogramType):
             Title of the audio as defined by sender or by audio tags.
     """
 
-    def __init__(self,
-                 *,
-                 client: "pyrogram.client.ext.BaseClient",
-                 file_id: str,
-                 duration: int,
-                 thumb: PhotoSize = None,
-                 file_name: str = None,
-                 mime_type: str = None,
-                 file_size: int = None,
-                 date: int = None,
-                 performer: str = None,
-                 title: str = None):
+    __slots__ = ["file_id", "thumb", "file_name", "mime_type", "file_size", "date", "duration", "performer", "title"]
+
+    def __init__(
+            self,
+            *,
+            client: "pyrogram.client.ext.BaseClient",
+            file_id: str,
+            duration: int,
+            thumb: PhotoSize = None,
+            file_name: str = None,
+            mime_type: str = None,
+            file_size: int = None,
+            date: int = None,
+            performer: str = None,
+            title: str = None
+    ):
         super().__init__(client)
 
         self.file_id = file_id
diff --git a/pyrogram/client/types/messages_and_media/contact.py b/pyrogram/client/types/messages_and_media/contact.py
index 51acb59f..0a897c05 100644
--- a/pyrogram/client/types/messages_and_media/contact.py
+++ b/pyrogram/client/types/messages_and_media/contact.py
@@ -42,14 +42,18 @@ class Contact(PyrogramType):
             Additional data about the contact in the form of a vCard.
     """
 
-    def __init__(self,
-                 *,
-                 client: "pyrogram.client.ext.BaseClient",
-                 phone_number: str,
-                 first_name: str,
-                 last_name: str = None,
-                 user_id: int = None,
-                 vcard: str = None):
+    __slots__ = ["phone_number", "first_name", "last_name", "user_id", "vcard"]
+
+    def __init__(
+            self,
+            *,
+            client: "pyrogram.client.ext.BaseClient",
+            phone_number: str,
+            first_name: str,
+            last_name: str = None,
+            user_id: int = None,
+            vcard: str = None
+    ):
         super().__init__(client)
 
         self.phone_number = phone_number
diff --git a/pyrogram/client/types/messages_and_media/document.py b/pyrogram/client/types/messages_and_media/document.py
index 5cd01a92..b3f5b586 100644
--- a/pyrogram/client/types/messages_and_media/document.py
+++ b/pyrogram/client/types/messages_and_media/document.py
@@ -48,15 +48,19 @@ class Document(PyrogramType):
             Date the document was sent in Unix time.
     """
 
-    def __init__(self,
-                 *,
-                 client: "pyrogram.client.ext.BaseClient",
-                 file_id: str,
-                 thumb: PhotoSize = None,
-                 file_name: str = None,
-                 mime_type: str = None,
-                 file_size: int = None,
-                 date: int = None):
+    __slots__ = ["file_id", "thumb", "file_name", "mime_type", "file_size", "date"]
+
+    def __init__(
+            self,
+            *,
+            client: "pyrogram.client.ext.BaseClient",
+            file_id: str,
+            thumb: PhotoSize = None,
+            file_name: str = None,
+            mime_type: str = None,
+            file_size: int = None,
+            date: int = None
+    ):
         super().__init__(client)
 
         self.file_id = file_id
diff --git a/pyrogram/client/types/messages_and_media/game.py b/pyrogram/client/types/messages_and_media/game.py
index 01af7226..ddfa84af 100644
--- a/pyrogram/client/types/messages_and_media/game.py
+++ b/pyrogram/client/types/messages_and_media/game.py
@@ -48,15 +48,19 @@ class Game(PyrogramType):
             Upload via BotFather.
     """
 
-    def __init__(self,
-                 *,
-                 client: "pyrogram.client.ext.BaseClient",
-                 id: int,
-                 title: str,
-                 short_name: str,
-                 description: str,
-                 photo: Photo,
-                 animation: Animation = None):
+    __slots__ = ["id", "title", "short_name", "description", "photo", "animation"]
+
+    def __init__(
+            self,
+            *,
+            client: "pyrogram.client.ext.BaseClient",
+            id: int,
+            title: str,
+            short_name: str,
+            description: str,
+            photo: Photo,
+            animation: Animation = None
+    ):
         super().__init__(client)
 
         self.id = id
diff --git a/pyrogram/client/types/messages_and_media/location.py b/pyrogram/client/types/messages_and_media/location.py
index 64acdbf5..0d2e6c43 100644
--- a/pyrogram/client/types/messages_and_media/location.py
+++ b/pyrogram/client/types/messages_and_media/location.py
@@ -33,11 +33,15 @@ class Location(PyrogramType):
             Latitude as defined by sender.
     """
 
-    def __init__(self,
-                 *,
-                 client: "pyrogram.client.ext.BaseClient",
-                 longitude: float,
-                 latitude: float):
+    __slots__ = ["longitude", "latitude"]
+
+    def __init__(
+            self,
+            *,
+            client: "pyrogram.client.ext.BaseClient",
+            longitude: float,
+            latitude: float
+    ):
         super().__init__(client)
 
         self.longitude = longitude
diff --git a/pyrogram/client/types/messages_and_media/message.py b/pyrogram/client/types/messages_and_media/message.py
index badd3689..405c26d9 100644
--- a/pyrogram/client/types/messages_and_media/message.py
+++ b/pyrogram/client/types/messages_and_media/message.py
@@ -234,65 +234,80 @@ class Message(PyrogramType, Update):
 
     # TODO: Add game missing field. Also invoice, successful_payment, connected_website
 
-    def __init__(self,
-                 *,
-                 client: "pyrogram.client.ext.BaseClient",
-                 message_id: int,
-                 date: int = None,
-                 chat: Chat = None,
-                 from_user: User = None,
-                 forward_from: User = None,
-                 forward_from_chat: Chat = None,
-                 forward_from_message_id: int = None,
-                 forward_signature: str = None,
-                 forward_date: int = None,
-                 reply_to_message: "Message" = None,
-                 mentioned: bool = None,
-                 empty: bool = None,
-                 service: bool = None,
-                 media: bool = None,
-                 edit_date: int = None,
-                 media_group_id: str = None,
-                 author_signature: str = None,
-                 text: str = None,
-                 entities: List["pyrogram.MessageEntity"] = None,
-                 caption_entities: List["pyrogram.MessageEntity"] = None,
-                 audio: "pyrogram.Audio" = None,
-                 document: "pyrogram.Document" = None,
-                 photo: "pyrogram.Photo" = None,
-                 sticker: "pyrogram.Sticker" = None,
-                 animation: "pyrogram.Animation" = None,
-                 game: "pyrogram.Game" = None,
-                 video: "pyrogram.Video" = None,
-                 voice: "pyrogram.Voice" = None,
-                 video_note: "pyrogram.VideoNote" = None,
-                 caption: str = None,
-                 contact: "pyrogram.Contact" = None,
-                 location: "pyrogram.Location" = None,
-                 venue: "pyrogram.Venue" = None,
-                 web_page: bool = None,
-                 poll: "pyrogram.Poll" = None,
-                 new_chat_members: List[User] = None,
-                 left_chat_member: User = None,
-                 new_chat_title: str = None,
-                 new_chat_photo: "pyrogram.Photo" = None,
-                 delete_chat_photo: bool = None,
-                 group_chat_created: bool = None,
-                 supergroup_chat_created: bool = None,
-                 channel_chat_created: bool = None,
-                 migrate_to_chat_id: int = None,
-                 migrate_from_chat_id: int = None,
-                 pinned_message: "Message" = None,
-                 game_high_score: int = None,
-                 views: int = None,
-                 via_bot: User = None,
-                 outgoing: bool = None,
-                 matches: List[Match] = None,
-                 command: List[str] = None,
-                 reply_markup: Union["pyrogram.InlineKeyboardMarkup",
-                                     "pyrogram.ReplyKeyboardMarkup",
-                                     "pyrogram.ReplyKeyboardRemove",
-                                     "pyrogram.ForceReply"] = None):
+    __slots__ = [
+        "message_id", "date", "chat", "from_user", "forward_from", "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,
+            *,
+            client: "pyrogram.client.ext.BaseClient",
+            message_id: int,
+            date: int = None,
+            chat: Chat = None,
+            from_user: User = None,
+            forward_from: User = None,
+            forward_from_chat: Chat = None,
+            forward_from_message_id: int = None,
+            forward_signature: str = None,
+            forward_date: int = None,
+            reply_to_message: "Message" = None,
+            mentioned: bool = None,
+            empty: bool = None,
+            service: bool = None,
+            media: bool = None,
+            edit_date: int = None,
+            media_group_id: str = None,
+            author_signature: str = None,
+            text: str = None,
+            entities: List["pyrogram.MessageEntity"] = None,
+            caption_entities: List["pyrogram.MessageEntity"] = None,
+            audio: "pyrogram.Audio" = None,
+            document: "pyrogram.Document" = None,
+            photo: "pyrogram.Photo" = None,
+            sticker: "pyrogram.Sticker" = None,
+            animation: "pyrogram.Animation" = None,
+            game: "pyrogram.Game" = None,
+            video: "pyrogram.Video" = None,
+            voice: "pyrogram.Voice" = None,
+            video_note: "pyrogram.VideoNote" = None,
+            caption: str = None,
+            contact: "pyrogram.Contact" = None,
+            location: "pyrogram.Location" = None,
+            venue: "pyrogram.Venue" = None,
+            web_page: bool = None,
+            poll: "pyrogram.Poll" = None,
+            new_chat_members: List[User] = None,
+            left_chat_member: User = None,
+            new_chat_title: str = None,
+            new_chat_photo: "pyrogram.Photo" = None,
+            delete_chat_photo: bool = None,
+            group_chat_created: bool = None,
+            supergroup_chat_created: bool = None,
+            channel_chat_created: bool = None,
+            migrate_to_chat_id: int = None,
+            migrate_from_chat_id: int = None,
+            pinned_message: "Message" = None,
+            game_high_score: int = None,
+            views: int = None,
+            via_bot: User = None,
+            outgoing: bool = None,
+            matches: List[Match] = None,
+            command: List[str] = None,
+            reply_markup: Union[
+                "pyrogram.InlineKeyboardMarkup",
+                "pyrogram.ReplyKeyboardMarkup",
+                "pyrogram.ReplyKeyboardRemove",
+                "pyrogram.ForceReply"
+            ] = None
+    ):
         super().__init__(client)
 
         self.message_id = message_id
diff --git a/pyrogram/client/types/messages_and_media/message_entity.py b/pyrogram/client/types/messages_and_media/message_entity.py
index 88beeb2f..fa59a5bc 100644
--- a/pyrogram/client/types/messages_and_media/message_entity.py
+++ b/pyrogram/client/types/messages_and_media/message_entity.py
@@ -47,6 +47,8 @@ class MessageEntity(PyrogramType):
             For "text_mention" only, the mentioned user.
     """
 
+    __slots__ = ["type", "offset", "length", "url", "user"]
+
     ENTITIES = {
         types.MessageEntityMention.ID: "mention",
         types.MessageEntityHashtag.ID: "hashtag",
@@ -63,14 +65,16 @@ class MessageEntity(PyrogramType):
         types.MessageEntityPhone.ID: "phone_number"
     }
 
-    def __init__(self,
-                 *,
-                 client: "pyrogram.client.ext.BaseClient",
-                 type: str,
-                 offset: int,
-                 length: int,
-                 url: str = None,
-                 user: User = None):
+    def __init__(
+            self,
+            *,
+            client: "pyrogram.client.ext.BaseClient",
+            type: str,
+            offset: int,
+            length: int,
+            url: str = None,
+            user: User = None
+    ):
         super().__init__(client)
 
         self.type = type
diff --git a/pyrogram/client/types/messages_and_media/messages.py b/pyrogram/client/types/messages_and_media/messages.py
index d89f0bad..4a203a4e 100644
--- a/pyrogram/client/types/messages_and_media/messages.py
+++ b/pyrogram/client/types/messages_and_media/messages.py
@@ -37,11 +37,15 @@ class Messages(PyrogramType, Update):
             Requested messages.
     """
 
-    def __init__(self,
-                 *,
-                 client: "pyrogram.client.ext.BaseClient",
-                 total_count: int,
-                 messages: List[Message]):
+    __slots__ = ["total_count", "messages"]
+
+    def __init__(
+            self,
+            *,
+            client: "pyrogram.client.ext.BaseClient",
+            total_count: int,
+            messages: List[Message]
+    ):
         super().__init__(client)
 
         self.total_count = total_count
diff --git a/pyrogram/client/types/messages_and_media/photo.py b/pyrogram/client/types/messages_and_media/photo.py
index aa2b3a26..12be919c 100644
--- a/pyrogram/client/types/messages_and_media/photo.py
+++ b/pyrogram/client/types/messages_and_media/photo.py
@@ -41,12 +41,16 @@ class Photo(PyrogramType):
             Available sizes of this photo.
     """
 
-    def __init__(self,
-                 *,
-                 client: "pyrogram.client.ext.BaseClient",
-                 id: str,
-                 date: int,
-                 sizes: List[PhotoSize]):
+    __slots__ = ["id", "date", "sizes"]
+
+    def __init__(
+            self,
+            *,
+            client: "pyrogram.client.ext.BaseClient",
+            id: str,
+            date: int,
+            sizes: List[PhotoSize]
+    ):
         super().__init__(client)
 
         self.id = id
diff --git a/pyrogram/client/types/messages_and_media/photo_size.py b/pyrogram/client/types/messages_and_media/photo_size.py
index 116b564c..03569062 100644
--- a/pyrogram/client/types/messages_and_media/photo_size.py
+++ b/pyrogram/client/types/messages_and_media/photo_size.py
@@ -42,13 +42,17 @@ class PhotoSize(PyrogramType):
             File size.
     """
 
-    def __init__(self,
-                 *,
-                 client: "pyrogram.client.ext.BaseClient",
-                 file_id: str,
-                 width: int,
-                 height: int,
-                 file_size: int):
+    __slots__ = ["file_id", "width", "height", "file_size"]
+
+    def __init__(
+            self,
+            *,
+            client: "pyrogram.client.ext.BaseClient",
+            file_id: str,
+            width: int,
+            height: int,
+            file_size: int
+    ):
         super().__init__(client)
 
         self.file_id = file_id
diff --git a/pyrogram/client/types/messages_and_media/poll.py b/pyrogram/client/types/messages_and_media/poll.py
index 72735c28..fa6372d9 100644
--- a/pyrogram/client/types/messages_and_media/poll.py
+++ b/pyrogram/client/types/messages_and_media/poll.py
@@ -47,15 +47,19 @@ class Poll(PyrogramType):
             The index of your chosen option (in case you voted already), None otherwise.
     """
 
-    def __init__(self,
-                 *,
-                 client: "pyrogram.client.ext.BaseClient",
-                 id: int,
-                 closed: bool,
-                 question: str,
-                 options: List[PollOption],
-                 total_voters: int,
-                 option_chosen: int = None):
+    __slots__ = ["id", "closed", "question", "options", "total_voters", "option_chosen"]
+
+    def __init__(
+            self,
+            *,
+            client: "pyrogram.client.ext.BaseClient",
+            id: int,
+            closed: bool,
+            question: str,
+            options: List[PollOption],
+            total_voters: int,
+            option_chosen: int = None
+    ):
         super().__init__(client)
 
         self.id = id
diff --git a/pyrogram/client/types/messages_and_media/poll_option.py b/pyrogram/client/types/messages_and_media/poll_option.py
index 227fe74f..1c2d6f1b 100644
--- a/pyrogram/client/types/messages_and_media/poll_option.py
+++ b/pyrogram/client/types/messages_and_media/poll_option.py
@@ -34,12 +34,16 @@ class PollOption(PyrogramType):
             Unique data that identifies this option among all the other options in a poll.
     """
 
-    def __init__(self,
-                 *,
-                 client: "pyrogram.client.ext.BaseClient",
-                 text: str,
-                 voters: int,
-                 data: bytes):
+    __slots__ = ["text", "voters", "data"]
+
+    def __init__(
+            self,
+            *,
+            client: "pyrogram.client.ext.BaseClient",
+            text: str,
+            voters: int,
+            data: bytes
+    ):
         super().__init__(client)
 
         self.text = text
diff --git a/pyrogram/client/types/messages_and_media/sticker.py b/pyrogram/client/types/messages_and_media/sticker.py
index a1ebbe32..70322577 100644
--- a/pyrogram/client/types/messages_and_media/sticker.py
+++ b/pyrogram/client/types/messages_and_media/sticker.py
@@ -64,19 +64,25 @@ class Sticker(PyrogramType):
 
     # TODO: Add mask position
 
-    def __init__(self,
-                 *,
-                 client: "pyrogram.client.ext.BaseClient",
-                 file_id: str,
-                 width: int,
-                 height: int,
-                 thumb: PhotoSize = None,
-                 file_name: str = None,
-                 mime_type: str = None,
-                 file_size: int = None,
-                 date: int = None,
-                 emoji: str = None,
-                 set_name: str = None):
+    __slots__ = [
+        "file_id", "thumb", "file_name", "mime_type", "file_size", "date", "width", "height", "emoji", "set_name"
+    ]
+
+    def __init__(
+            self,
+            *,
+            client: "pyrogram.client.ext.BaseClient",
+            file_id: str,
+            width: int,
+            height: int,
+            thumb: PhotoSize = None,
+            file_name: str = None,
+            mime_type: str = None,
+            file_size: int = None,
+            date: int = None,
+            emoji: str = None,
+            set_name: str = None
+    ):
         super().__init__(client)
 
         self.file_id = file_id
diff --git a/pyrogram/client/types/messages_and_media/user_profile_photos.py b/pyrogram/client/types/messages_and_media/user_profile_photos.py
index 8f8525cc..770b0ec8 100644
--- a/pyrogram/client/types/messages_and_media/user_profile_photos.py
+++ b/pyrogram/client/types/messages_and_media/user_profile_photos.py
@@ -34,11 +34,15 @@ class UserProfilePhotos(PyrogramType):
             Requested profile pictures.
     """
 
-    def __init__(self,
-                 *,
-                 client: "pyrogram.client.ext.BaseClient",
-                 total_count: int,
-                 photos: List[Photo]):
+    __slots__ = ["total_count", "photos"]
+
+    def __init__(
+            self,
+            *,
+            client: "pyrogram.client.ext.BaseClient",
+            total_count: int,
+            photos: List[Photo]
+    ):
         super().__init__(client)
 
         self.total_count = total_count
diff --git a/pyrogram/client/types/messages_and_media/venue.py b/pyrogram/client/types/messages_and_media/venue.py
index 91b3455a..5dd81093 100644
--- a/pyrogram/client/types/messages_and_media/venue.py
+++ b/pyrogram/client/types/messages_and_media/venue.py
@@ -44,14 +44,18 @@ class Venue(PyrogramType):
 
     """
 
-    def __init__(self,
-                 *,
-                 client: "pyrogram.client.ext.BaseClient",
-                 location: Location,
-                 title: str,
-                 address: str,
-                 foursquare_id: str = None,
-                 foursquare_type: str = None):
+    __slots__ = ["location", "title", "address", "foursquare_id", "foursquare_type"]
+
+    def __init__(
+            self,
+            *,
+            client: "pyrogram.client.ext.BaseClient",
+            location: Location,
+            title: str,
+            address: str,
+            foursquare_id: str = None,
+            foursquare_type: str = None
+    ):
         super().__init__(client)
 
         self.location = location
diff --git a/pyrogram/client/types/messages_and_media/video.py b/pyrogram/client/types/messages_and_media/video.py
index 2ec9a947..39ec1455 100644
--- a/pyrogram/client/types/messages_and_media/video.py
+++ b/pyrogram/client/types/messages_and_media/video.py
@@ -57,18 +57,22 @@ class Video(PyrogramType):
             Date the video was sent in Unix time.
     """
 
-    def __init__(self,
-                 *,
-                 client: "pyrogram.client.ext.BaseClient",
-                 file_id: str,
-                 width: int,
-                 height: int,
-                 duration: int,
-                 thumb: PhotoSize = None,
-                 file_name: str = None,
-                 mime_type: str = None,
-                 file_size: int = None,
-                 date: int = None):
+    __slots__ = ["file_id", "thumb", "file_name", "mime_type", "file_size", "date", "width", "height", "duration"]
+
+    def __init__(
+            self,
+            *,
+            client: "pyrogram.client.ext.BaseClient",
+            file_id: str,
+            width: int,
+            height: int,
+            duration: int,
+            thumb: PhotoSize = None,
+            file_name: str = None,
+            mime_type: str = None,
+            file_size: int = None,
+            date: int = None
+    ):
         super().__init__(client)
 
         self.file_id = file_id
diff --git a/pyrogram/client/types/messages_and_media/video_note.py b/pyrogram/client/types/messages_and_media/video_note.py
index 73bb85dc..afa4ad46 100644
--- a/pyrogram/client/types/messages_and_media/video_note.py
+++ b/pyrogram/client/types/messages_and_media/video_note.py
@@ -51,16 +51,20 @@ class VideoNote(PyrogramType):
             Date the video note was sent in Unix time.
     """
 
-    def __init__(self,
-                 *,
-                 client: "pyrogram.client.ext.BaseClient",
-                 file_id: str,
-                 length: int,
-                 duration: int,
-                 thumb: PhotoSize = None,
-                 mime_type: str = None,
-                 file_size: int = None,
-                 date: int = None):
+    __slots__ = ["file_id", "thumb", "mime_type", "file_size", "date", "length", "duration"]
+
+    def __init__(
+            self,
+            *,
+            client: "pyrogram.client.ext.BaseClient",
+            file_id: str,
+            length: int,
+            duration: int,
+            thumb: PhotoSize = None,
+            mime_type: str = None,
+            file_size: int = None,
+            date: int = None
+    ):
         super().__init__(client)
 
         self.file_id = file_id
diff --git a/pyrogram/client/types/messages_and_media/voice.py b/pyrogram/client/types/messages_and_media/voice.py
index e6bba45b..d5028cd3 100644
--- a/pyrogram/client/types/messages_and_media/voice.py
+++ b/pyrogram/client/types/messages_and_media/voice.py
@@ -47,15 +47,19 @@ class Voice(PyrogramType):
             Date the voice was sent in Unix time.
     """
 
-    def __init__(self,
-                 *,
-                 client: "pyrogram.client.ext.BaseClient",
-                 file_id: str,
-                 duration: int,
-                 waveform: bytes = None,
-                 mime_type: str = None,
-                 file_size: int = None,
-                 date: int = None):
+    __slots__ = ["file_id", "duration", "waveform", "mime_type", "file_size", "date"]
+
+    def __init__(
+            self,
+            *,
+            client: "pyrogram.client.ext.BaseClient",
+            file_id: str,
+            duration: int,
+            waveform: bytes = None,
+            mime_type: str = None,
+            file_size: int = None,
+            date: int = None
+    ):
         super().__init__(client)
 
         self.file_id = file_id
diff --git a/pyrogram/client/types/user_and_chats/chat.py b/pyrogram/client/types/user_and_chats/chat.py
index db15db58..81067821 100644
--- a/pyrogram/client/types/user_and_chats/chat.py
+++ b/pyrogram/client/types/user_and_chats/chat.py
@@ -80,24 +80,32 @@ class Chat(PyrogramType):
             Information about the chat default permissions.
     """
 
-    def __init__(self,
-                 *,
-                 client: "pyrogram.client.ext.BaseClient",
-                 id: int,
-                 type: str,
-                 title: str = None,
-                 username: str = None,
-                 first_name: str = None,
-                 last_name: str = None,
-                 photo: ChatPhoto = None,
-                 description: str = None,
-                 invite_link: str = None,
-                 pinned_message=None,
-                 sticker_set_name: str = None,
-                 can_set_sticker_set: bool = None,
-                 members_count: int = None,
-                 restriction_reason: str = None,
-                 permissions: "pyrogram.ChatPermissions" = None):
+    __slots__ = [
+        "id", "type", "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,
+            *,
+            client: "pyrogram.client.ext.BaseClient",
+            id: int,
+            type: str,
+            title: str = None,
+            username: str = None,
+            first_name: str = None,
+            last_name: str = None,
+            photo: ChatPhoto = None,
+            description: str = None,
+            invite_link: str = None,
+            pinned_message=None,
+            sticker_set_name: str = None,
+            can_set_sticker_set: bool = None,
+            members_count: int = None,
+            restriction_reason: str = None,
+            permissions: "pyrogram.ChatPermissions" = None
+    ):
         super().__init__(client)
 
         self.id = id
diff --git a/pyrogram/client/types/user_and_chats/chat_member.py b/pyrogram/client/types/user_and_chats/chat_member.py
index 5769b3f8..07a3d190 100644
--- a/pyrogram/client/types/user_and_chats/chat_member.py
+++ b/pyrogram/client/types/user_and_chats/chat_member.py
@@ -51,16 +51,20 @@ class ChatMember(PyrogramType):
             Information about the member permissions.
     """
 
-    def __init__(self,
-                 *,
-                 client: "pyrogram.client.ext.BaseClient",
-                 user: "pyrogram.User",
-                 status: str,
-                 date: int = None,
-                 invited_by: "pyrogram.User" = None,
-                 promoted_by: "pyrogram.User" = None,
-                 restricted_by: "pyrogram.User" = None,
-                 permissions: "pyrogram.ChatPermissions" = None):
+    __slots__ = ["user", "status", "date", "invited_by", "promoted_by", "restricted_by", "permissions"]
+
+    def __init__(
+            self,
+            *,
+            client: "pyrogram.client.ext.BaseClient",
+            user: "pyrogram.User",
+            status: str,
+            date: int = None,
+            invited_by: "pyrogram.User" = None,
+            promoted_by: "pyrogram.User" = None,
+            restricted_by: "pyrogram.User" = None,
+            permissions: "pyrogram.ChatPermissions" = None
+    ):
         super().__init__(client)
 
         self.user = user
diff --git a/pyrogram/client/types/user_and_chats/chat_members.py b/pyrogram/client/types/user_and_chats/chat_members.py
index 39d69089..0578e04e 100644
--- a/pyrogram/client/types/user_and_chats/chat_members.py
+++ b/pyrogram/client/types/user_and_chats/chat_members.py
@@ -21,7 +21,6 @@ from typing import List
 import pyrogram
 from pyrogram.api import types
 from .chat_member import ChatMember
-from .user import User
 from ..pyrogram_type import PyrogramType
 
 
@@ -36,11 +35,15 @@ class ChatMembers(PyrogramType):
             Requested chat members.
     """
 
-    def __init__(self,
-                 *,
-                 client: "pyrogram.client.ext.BaseClient",
-                 total_count: int,
-                 chat_members: List[ChatMember]):
+    __slots__ = ["total_count", "chat_members"]
+
+    def __init__(
+            self,
+            *,
+            client: "pyrogram.client.ext.BaseClient",
+            total_count: int,
+            chat_members: List[ChatMember]
+    ):
         super().__init__(client)
 
         self.total_count = total_count
diff --git a/pyrogram/client/types/user_and_chats/chat_permissions.py b/pyrogram/client/types/user_and_chats/chat_permissions.py
index a931cd7a..4a4785b5 100644
--- a/pyrogram/client/types/user_and_chats/chat_permissions.py
+++ b/pyrogram/client/types/user_and_chats/chat_permissions.py
@@ -94,6 +94,13 @@ class ChatPermissions(PyrogramType):
             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 848f7250..deec5770 100644
--- a/pyrogram/client/types/user_and_chats/chat_photo.py
+++ b/pyrogram/client/types/user_and_chats/chat_photo.py
@@ -35,11 +35,15 @@ class ChatPhoto(PyrogramType):
             Unique file identifier of big (640x640) chat photo. This file_id can be used only for photo download.
     """
 
-    def __init__(self,
-                 *,
-                 client: "pyrogram.client.ext.BaseClient",
-                 small_file_id: str,
-                 big_file_id: str):
+    __slots__ = ["small_file_id", "big_file_id"]
+
+    def __init__(
+            self,
+            *,
+            client: "pyrogram.client.ext.BaseClient",
+            small_file_id: str,
+            big_file_id: str
+    ):
         super().__init__(client)
 
         self.small_file_id = small_file_id
diff --git a/pyrogram/client/types/user_and_chats/chat_preview.py b/pyrogram/client/types/user_and_chats/chat_preview.py
index 45048637..9c9c71ec 100644
--- a/pyrogram/client/types/user_and_chats/chat_preview.py
+++ b/pyrogram/client/types/user_and_chats/chat_preview.py
@@ -45,14 +45,18 @@ class ChatPreview(PyrogramType):
             Preview of some of the chat members.
     """
 
-    def __init__(self,
-                 *,
-                 client: "pyrogram.client.ext.BaseClient",
-                 title: str,
-                 photo: ChatPhoto,
-                 type: str,
-                 members_count: int,
-                 members: List[User] = None):
+    __slots__ = ["title", "photo", "type", "members_count", "members"]
+
+    def __init__(
+            self,
+            *,
+            client: "pyrogram.client.ext.BaseClient",
+            title: str,
+            photo: ChatPhoto,
+            type: str,
+            members_count: int,
+            members: List[User] = None
+    ):
         super().__init__(client)
 
         self.title = title
diff --git a/pyrogram/client/types/user_and_chats/dialog.py b/pyrogram/client/types/user_and_chats/dialog.py
index b71caba7..11a1ae19 100644
--- a/pyrogram/client/types/user_and_chats/dialog.py
+++ b/pyrogram/client/types/user_and_chats/dialog.py
@@ -46,15 +46,19 @@ class Dialog(PyrogramType):
             True, if the dialog is pinned.
     """
 
-    def __init__(self,
-                 *,
-                 client: "pyrogram.client.ext.BaseClient",
-                 chat: Chat,
-                 top_message: "pyrogram.Message",
-                 unread_messages_count: int,
-                 unread_mentions_count: int,
-                 unread_mark: bool,
-                 is_pinned: bool):
+    __slots__ = ["chat", "top_message", "unread_messages_count", "unread_mentions_count", "unread_mark", "is_pinned"]
+
+    def __init__(
+            self,
+            *,
+            client: "pyrogram.client.ext.BaseClient",
+            chat: Chat,
+            top_message: "pyrogram.Message",
+            unread_messages_count: int,
+            unread_mentions_count: int,
+            unread_mark: bool,
+            is_pinned: bool
+    ):
         super().__init__(client)
 
         self.chat = chat
diff --git a/pyrogram/client/types/user_and_chats/dialogs.py b/pyrogram/client/types/user_and_chats/dialogs.py
index 394ddd28..27222a91 100644
--- a/pyrogram/client/types/user_and_chats/dialogs.py
+++ b/pyrogram/client/types/user_and_chats/dialogs.py
@@ -36,11 +36,15 @@ class Dialogs(PyrogramType):
             Requested dialogs.
     """
 
-    def __init__(self,
-                 *,
-                 client: "pyrogram.client.ext.BaseClient",
-                 total_count: int,
-                 dialogs: List[Dialog]):
+    __slots__ = ["total_count", "dialogs"]
+
+    def __init__(
+            self,
+            *,
+            client: "pyrogram.client.ext.BaseClient",
+            total_count: int,
+            dialogs: List[Dialog]
+    ):
         super().__init__(client)
 
         self.total_count = total_count
diff --git a/pyrogram/client/types/user_and_chats/user.py b/pyrogram/client/types/user_and_chats/user.py
index c6ee03e8..f5c00ac0 100644
--- a/pyrogram/client/types/user_and_chats/user.py
+++ b/pyrogram/client/types/user_and_chats/user.py
@@ -70,23 +70,30 @@ class User(PyrogramType):
             The reason why this bot might be unavailable to some users.
     """
 
-    def __init__(self,
-                 *,
-                 client: "pyrogram.client.ext.BaseClient",
-                 id: int,
-                 is_self: bool,
-                 is_contact: bool,
-                 is_mutual_contact: bool,
-                 is_deleted: bool,
-                 is_bot: bool,
-                 first_name: str,
-                 last_name: str = None,
-                 status: UserStatus = None,
-                 username: str = None,
-                 language_code: str = None,
-                 phone_number: str = None,
-                 photo: ChatPhoto = None,
-                 restriction_reason: str = None):
+    __slots__ = [
+        "id", "is_self", "is_contact", "is_mutual_contact", "is_deleted", "is_bot", "first_name", "last_name", "status",
+        "username", "language_code", "phone_number", "photo", "restriction_reason"
+    ]
+
+    def __init__(
+            self,
+            *,
+            client: "pyrogram.client.ext.BaseClient",
+            id: int,
+            is_self: bool,
+            is_contact: bool,
+            is_mutual_contact: bool,
+            is_deleted: bool,
+            is_bot: bool,
+            first_name: str,
+            last_name: str = None,
+            status: UserStatus = None,
+            username: str = None,
+            language_code: str = None,
+            phone_number: str = None,
+            photo: ChatPhoto = None,
+            restriction_reason: str = None
+    ):
         super().__init__(client)
 
         self.id = id
diff --git a/pyrogram/client/types/user_and_chats/user_status.py b/pyrogram/client/types/user_and_chats/user_status.py
index 8c936f8e..871978d0 100644
--- a/pyrogram/client/types/user_and_chats/user_status.py
+++ b/pyrogram/client/types/user_and_chats/user_status.py
@@ -65,17 +65,21 @@ class UserStatus(PyrogramType, Update):
             always shown to blocked users), None otherwise.
     """
 
-    def __init__(self,
-                 *,
-                 client: "pyrogram.client.ext.BaseClient",
-                 user_id: int,
-                 online: bool = None,
-                 offline: bool = None,
-                 date: int = None,
-                 recently: bool = None,
-                 within_week: bool = None,
-                 within_month: bool = None,
-                 long_time_ago: bool = None):
+    __slots__ = ["user_id", "online", "offline", "date", "recently", "within_week", "within_month", "long_time_ago"]
+
+    def __init__(
+            self,
+            *,
+            client: "pyrogram.client.ext.BaseClient",
+            user_id: int,
+            online: bool = None,
+            offline: bool = None,
+            date: int = None,
+            recently: bool = None,
+            within_week: bool = None,
+            within_month: bool = None,
+            long_time_ago: bool = None
+    ):
         super().__init__(client)
 
         self.user_id = user_id