Merge branch 'master' of https://github.com/zeph1997/pyTelegramBotAPI

2023-08-10 21:12:57 +03:00 · 2021-12-11 02:28:41 +08:00 · 2021-12-11 02:28:41 +08:00 · cebfbb83fa
commit cebfbb83fa
parent 5a06d8021b a75841aa8e
64 changed files with 11350 additions and 2176 deletions
--- a/.github/workflows/setup_python.yml
+++ b/.github/workflows/setup_python.yml
@ -0,0 +1,35 @@
+# This is a basic workflow to help you get started with Actions
+
+name: Setup
+
+# Controls when the action will run. 
+on:
+  # Triggers the workflow on push or pull request events but only for the master branch
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+  # Allows you to run this workflow manually from the Actions tab
+  #workflow_dispatch:
+
+# A workflow run is made up of one or more jobs that can run sequentially or in parallel
+jobs:
+  # This workflow contains a single job called "build"
+  all-setups:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: [ '3.6','3.7','3.8','3.9', 'pypy-3.6', 'pypy-3.7' ] #'pypy-3.8', 'pypy-3.9' NOT SUPPORTED NOW
+    name: ${{ matrix.python-version }} and tests
+    steps:
+      - uses: actions/checkout@v2
+      - name: Setup python
+        uses: actions/setup-python@v2
+        with:
+          python-version: ${{ matrix.python-version }}
+          architecture: x64
+      - run: |
+          pip3 install -r requirements.txt
+          python setup.py install
+          cd tests && py.test
--- a/.gitignore
+++ b/.gitignore
@ -25,6 +25,7 @@ var/

 .idea/
 venv/
+.venv/

 # PyInstaller
 #  Usually these files are written by a python script from a template
@ -62,3 +63,4 @@ testMain.py

 #VS Code
 .vscode/
+.DS_Store
--- a/.travis.yml
+++ b/.travis.yml
@ -1,9 +1,9 @@
 language: python
 python:
-    - "3.5"
-    - "3.6"
    - "3.7"
    - "3.8"
+    - "3.9"
+    - "3.10"
    - "pypy3"
 install: "pip install -r requirements.txt"
 script:
--- a/README.md
+++ b/README.md
@ -1,12 +1,19 @@
-# <p align="center">pyTelegramBotAPI
-
-<p align="center">A simple, but extensible Python implementation for the <a href="https://core.telegram.org/bots/api">Telegram Bot API</a>.

 [![PyPi Package Version](https://img.shields.io/pypi/v/pyTelegramBotAPI.svg)](https://pypi.python.org/pypi/pyTelegramBotAPI)
 [![Supported Python versions](https://img.shields.io/pypi/pyversions/pyTelegramBotAPI.svg)](https://pypi.python.org/pypi/pyTelegramBotAPI)
 [![Build Status](https://travis-ci.org/eternnoir/pyTelegramBotAPI.svg?branch=master)](https://travis-ci.org/eternnoir/pyTelegramBotAPI)
+[![PyPi downloads](https://img.shields.io/pypi/dm/pyTelegramBotAPI.svg)](https://pypi.org/project/pyTelegramBotAPI/)

-  * [Getting started.](#getting-started)
+# <p align="center">pyTelegramBotAPI
+
+<p align="center">A simple, but extensible Python implementation for the <a href="https://core.telegram.org/bots/api">Telegram Bot API</a>.</p>
+<p align="center">Supports both sync and async ways.</p>
+
+## <p align="center">Supporting Bot API version: <a href="https://core.telegram.org/bots/api#december-7-2021">5.5</a>!
+
+## Contents
+
+  * [Getting started](#getting-started)
  * [Writing your first bot](#writing-your-first-bot)
    * [Prerequisites](#prerequisites)
    * [A simple echo bot](#a-simple-echo-bot)
@ -15,31 +22,48 @@
    * [Methods](#methods)
    * [General use of the API](#general-use-of-the-api)
      * [Message handlers](#message-handlers)
+      * [Edited Message handler](#edited-message-handler)
+      * [Channel Post handler](#channel-post-handler)
+      * [Edited Channel Post handler](#edited-channel-post-handler)
      * [Callback Query handlers](#callback-query-handler)
-      * [Middleware handlers](#middleware-handler)
+      * [Shipping Query Handler](#shipping-query-handler)
+      * [Pre Checkout Query Handler](#pre-checkout-query-handler)
+      * [Poll Handler](#poll-handler)
+      * [Poll Answer Handler](#poll-answer-handler)
+      * [My Chat Member Handler](#my-chat-member-handler)
+      * [Chat Member Handler](#chat-member-handler)
+      * [Chat Join request handler](#chat-join-request-handler)
+    * [Inline Mode](#inline-mode)
+      * [Inline handler](#inline-handler)
+      * [Chosen Inline handler](#chosen-inline-handler)
+      * [Answer Inline Query](#answer-inline-query)
+    * [Additional API features](#additional-api-features)
+      * [Middleware handlers](#middleware-handlers)
+      * [Custom filters](#custom-filters)
      * [TeleBot](#telebot)
      * [Reply markup](#reply-markup)
-      * [Inline Mode](#inline-mode)
  * [Advanced use of the API](#advanced-use-of-the-api)
-    * [Asynchronous delivery of messages](#asynchronous-delivery-of-messages)
+    * [Using local Bot API Server](#using-local-bot-api-sever)
+    * [Asynchronous TeleBot](#asynchronous-telebot)
    * [Sending large text messages](#sending-large-text-messages)
    * [Controlling the amount of Threads used by TeleBot](#controlling-the-amount-of-threads-used-by-telebot)
    * [The listener mechanism](#the-listener-mechanism)
    * [Using web hooks](#using-web-hooks)
    * [Logging](#logging)
    * [Proxy](#proxy)
+    * [Testing](#testing)
  * [API conformance](#api-conformance)
-  * [Change log](#change-log)
+  * [AsyncTeleBot](#asynctelebot)
  * [F.A.Q.](#faq)
-    * [Bot 2.0](#bot-20)
    * [How can I distinguish a User and a GroupChat in message.chat?](#how-can-i-distinguish-a-user-and-a-groupchat-in-messagechat)
+    * [How can I handle reocurring ConnectionResetErrors?](#how-can-i-handle-reocurring-connectionreseterrors)
  * [The Telegram Chat Group](#the-telegram-chat-group)
  * [More examples](#more-examples)
  * [Bots using this API](#bots-using-this-api)

-## Getting started.
+## Getting started

-This API is tested with Python 2.6, Python 2.7, Python 3.4, Pypy and Pypy 3.
+This API is tested with Python 3.6-3.10 and Pypy 3.
 There are two ways to install the library:

 * Installation using pip (a Python package manager)*:
@ -75,7 +99,7 @@ Then, open the file and create an instance of the TeleBot class.
 ```python
 import telebot

-bot = telebot.TeleBot("TOKEN")
+bot = telebot.TeleBot("TOKEN", parse_mode=None) # You can set parse_mode by default. HTML or MARKDOWN
 ```
 *Note: Make sure to actually replace TOKEN with your own API token.*

@ -101,13 +125,13 @@ This one echoes all incoming text messages back to the sender. It uses a lambda

 We now have a basic bot which replies a static message to "/start" and "/help" commands and which echoes the rest of the sent messages. To start the bot, add the following to our source file:
 ```python
-bot.polling()
+bot.infinity_polling()
 ```
 Alright, that's it! Our source file now looks like this:
 ```python
 import telebot

-bot = telebot.TeleBot("TOKEN")
+bot = telebot.TeleBot("YOUR_BOT_TOKEN")

@bot.message_handler(commands=['start', 'help'])
 def send_welcome(message):
@ -117,7 +141,7 @@ def send_welcome(message):
 def echo_all(message):
 	bot.reply_to(message, message.text)

-bot.polling()
+bot.infinity_polling()
 ```
 To start the bot, simply open up a terminal and enter `python echo_bot.py` to run the bot! Test it by sending commands ('/start' and '/help') and arbitrary text messages.

@ -144,7 +168,7 @@ Outlined below are some general use cases of the API.

 #### Message handlers
 A message handler is a function that is decorated with the `message_handler` decorator of a TeleBot instance. Message handlers consist of one or multiple filters.
-Each filter much return True for a certain message in order for a message handler to become eligible to handle that message. A message handler is declared in the following way (provided `bot` is an instance of TeleBot):
+Each filter must return True for a certain message in order for a message handler to become eligible to handle that message. A message handler is declared in the following way (provided `bot` is an instance of TeleBot):
 ```python
@bot.message_handler(filters)
 def function_name(message):
@ -160,8 +184,9 @@ TeleBot supports the following filters:
 |content_types|list of strings (default `['text']`)|`True` if message.content_type is in the list of strings.|
 |regexp|a regular expression as a string|`True` if `re.search(regexp_arg)` returns `True` and `message.content_type == 'text'` (See [Python Regular Expressions](https://docs.python.org/2/library/re.html))|
 |commands|list of strings|`True` if `message.content_type == 'text'` and `message.text` starts with a command that is in the list of strings.|
-|func|a function (lambda or function reference)|`True` if the lambda or function reference returns `True`
-
+|chat_types|list of chat types|`True` if `message.chat.type` in your filter|
+|func|a function (lambda or function reference)|`True` if the lambda or function reference returns `True`|
+	
 Here are some examples of using the filters and message handlers:

 ```python
@ -205,34 +230,108 @@ def send_something(message):
 ```
 **Important: all handlers are tested in the order in which they were declared**

-#### Edited Message handlers
+#### Edited Message handler
+Handle edited messages
+`@bot.edited_message_handler(filters) # <- passes a Message type object to your function`

-@bot.edited_message_handler(filters)
+#### Channel Post handler
+Handle channel post messages
+`@bot.channel_post_handler(filters) # <- passes a Message type object to your function`

-#### channel_post_handler
-
-@bot.channel_post_handler(filters)
-
-#### edited_channel_post_handler
-
-@bot.edited_channel_post_handler(filters)
+#### Edited Channel Post handler
+Handle edited channel post messages
+`@bot.edited_channel_post_handler(filters) # <- passes a Message type object to your function`

 #### Callback Query Handler
-
-In bot2.0 update. You can get `callback_query` in update object. In telebot use `callback_query_handler` to process callback queries.
-
+Handle callback queries
 ```python
@bot.callback_query_handler(func=lambda call: True)
-def  test_callback(call):
+def test_callback(call): # <- passes a CallbackQuery type object to your function
    logger.info(call)
 ```
-#### Middleware Handler
+
+#### Shipping Query Handler
+Handle shipping queries
+`@bot.shipping_query_handeler() # <- passes a ShippingQuery type object to your function`
+
+#### Pre Checkout Query Handler
+Handle pre checkoupt queries
+`@bot.pre_checkout_query_handler() # <- passes a PreCheckoutQuery type object to your function`
+
+#### Poll Handler
+Handle poll updates
+`@bot.poll_handler() # <- passes a Poll type object to your function`
+
+#### Poll Answer Handler
+Handle poll answers
+`@bot.poll_answer_handler() # <- passes a PollAnswer type object to your function`
+
+#### My Chat Member Handler
+Handle updates of a the bot's member status in a chat
+`@bot.my_chat_member_handler() # <- passes a ChatMemberUpdated type object to your function`
+
+#### Chat Member Handler
+Handle updates of a chat member's status in a chat
+`@bot.chat_member_handler() # <- passes a ChatMemberUpdated type object to your function`
+*Note: "chat_member" updates are not requested by default. If you want to allow all update types, set `allowed_updates` in `bot.polling()` / `bot.infinity_polling()` to `util.update_types`*
+
+#### Chat Join Request Handler	
+Handle chat join requests using:
+`@bot.chat_join_request_handler() # <- passes ChatInviteLink type object to your function`
+
+### Inline Mode
+
+More information about [Inline mode](https://core.telegram.org/bots/inline).
+
+#### Inline handler
+
+Now, you can use inline_handler to get inline queries in telebot.
+
+```python
+
+@bot.inline_handler(lambda query: query.query == 'text')
+def query_text(inline_query):
+    # Query message is text
+```
+
+#### Chosen Inline handler
+
+Use chosen_inline_handler to get chosen_inline_result in telebot. Don't forgot add the /setinlinefeedback
+command for @Botfather.
+
+More information : [collecting-feedback](https://core.telegram.org/bots/inline#collecting-feedback)
+
+```python
+@bot.chosen_inline_handler(func=lambda chosen_inline_result: True)
+def test_chosen(chosen_inline_result):
+    # Process all chosen_inline_result.
+```
+
+#### Answer Inline Query
+
+```python
+@bot.inline_handler(lambda query: query.query == 'text')
+def query_text(inline_query):
+    try:
+        r = types.InlineQueryResultArticle('1', 'Result', types.InputTextMessageContent('Result message.'))
+        r2 = types.InlineQueryResultArticle('2', 'Result2', types.InputTextMessageContent('Result message2.'))
+        bot.answer_inline_query(inline_query.id, [r, r2])
+    except Exception as e:
+        print(e)
+
+```
+
+### Additional API features
+
+#### Middleware Handlers

 A middleware handler is a function that allows you to modify requests or the bot context as they pass through the 
 Telegram to the bot. You can imagine middleware as a chain of logic connection handled before any other handlers are
-executed.
+executed. Middleware processing is disabled by default, enable it by setting `apihelper.ENABLE_MIDDLEWARE = True`. 

 ```python
+apihelper.ENABLE_MIDDLEWARE = True
+
@bot.middleware_handler(update_types=['message'])
 def modify_message(bot_instance, message):
    # modifying the message before it reaches any other handler 
@ -244,6 +343,43 @@ def start(message):
    assert message.another_text == message.text + ':changed'
 ```
 There are other examples using middleware handler in the [examples/middleware](examples/middleware) directory.
+	
+	
+#### Custom filters
+Also, you can use built-in custom filters. Or, you can create your own filter.	
+
+[Example of custom filter](https://github.com/eternnoir/pyTelegramBotAPI/blob/master/examples/custom_filters/general_custom_filters.py)
+	
+Also, we have examples on them. Check this links:
+	
+You can check some built-in filters in source [code](https://github.com/eternnoir/pyTelegramBotAPI/blob/master/telebot/custom_filters.py)
+	
+Example of [filtering by id](https://github.com/eternnoir/pyTelegramBotAPI/blob/master/examples/custom_filters/id_filter_example.py)
+	
+Example of [filtering by text](https://github.com/eternnoir/pyTelegramBotAPI/blob/master/examples/custom_filters/text_filter_example.py)
+	
+If you want to add some built-in filter, you are welcome to add it in custom_filters.py file.
+	
+Here is example of creating filter-class:
+	
+```python
+class IsAdmin(telebot.custom_filters.SimpleCustomFilter):
+    # Class will check whether the user is admin or creator in group or not
+    key='is_admin'
+    @staticmethod
+    def check(message: telebot.types.Message):
+        return bot.get_chat_member(message.chat.id,message.from_user.id).status in ['administrator','creator']
+	
+# To register filter, you need to use method add_custom_filter.
+bot.add_custom_filter(IsAdmin())
+	
+# Now, you can use it in handler.
+@bot.message_handler(is_admin=True)
+def admin_of_group(message):
+	bot.send_message(message.chat.id, 'You are admin of this group!')
+
+```
+	

 #### TeleBot
 ```python
@ -253,11 +389,10 @@ TOKEN = '<token_string>'
 tb = telebot.TeleBot(TOKEN)	#create a new Telegram Bot object

 # Upon calling this function, TeleBot starts polling the Telegram servers for new messages.
-# - none_stop: True/False (default False) - Don't stop polling when receiving an error from the Telegram servers
-# - interval: True/False (default False) - The interval between polling requests
-#           Note: Editing this parameter harms the bot's response time
+# - interval: int (default 0) - The interval between polling requests
 # - timeout: integer (default 20) - Timeout in seconds for long polling.
-tb.polling(none_stop=False, interval=0, timeout=20)
+# - allowed_updates: List of Strings (default None) - List of update types to request 
+tb.infinity_polling(interval=0, timeout=20)

 # getMe
 user = tb.get_me()
@ -269,11 +404,15 @@ tb.remove_webhook()

 # getUpdates
 updates = tb.get_updates()
+# or
 updates = tb.get_updates(1234,100,20) #get_Updates(offset, limit, timeout):

 # sendMessage
 tb.send_message(chat_id, text)

+# editMessageText
+tb.edit_message_text(new_text, chat_id, message_id)
+
 # forwardMessage
 tb.forward_message(to_chat_id, from_chat_id, message_id)

@ -387,49 +526,8 @@ ForceReply:

 ![ForceReply](https://farm4.staticflickr.com/3809/32418726814_d1baec0fc2_o_d.jpg "ForceReply")

-### Inline Mode

-More information about [Inline mode](https://core.telegram.org/bots/inline).
-
-#### inline_handler
-
-Now, you can use inline_handler to get inline queries in telebot.
-
-```python
-
-@bot.inline_handler(lambda query: query.query == 'text')
-def query_text(inline_query):
-    # Query message is text
-```
-
-
-#### chosen_inline_handler
-
-Use chosen_inline_handler to get chosen_inline_result in telebot. Don't forgot add the /setinlinefeedback
-command for @Botfather.
-
-More information : [collecting-feedback](https://core.telegram.org/bots/inline#collecting-feedback)
-
-```python
-@bot.chosen_inline_handler(func=lambda chosen_inline_result: True)
-def test_chosen(chosen_inline_result):
-    # Process all chosen_inline_result.
-```
-
-#### answer_inline_query
-
-```python
-@bot.inline_handler(lambda query: query.query == 'text')
-def query_text(inline_query):
-    try:
-        r = types.InlineQueryResultArticle('1', 'Result', types.InputTextMessageContent('Result message.'))
-        r2 = types.InlineQueryResultArticle('2', 'Result2', types.InputTextMessageContent('Result message2.'))
-        bot.answer_inline_query(inline_query.id, [r, r2])
-    except Exception as e:
-        print(e)
-
-```
-### Working with entities:
+### Working with entities
 This object represents one special entity in a text message. For example, hashtags, usernames, URLs, etc.
 Attributes:
 * `type`
@ -447,26 +545,38 @@ Refer [Bot Api](https://core.telegram.org/bots/api#messageentity) for extra deta

 ## Advanced use of the API

-### Asynchronous delivery of messages
-There exists an implementation of TeleBot which executes all `send_xyz` and the `get_me` functions asynchronously. This can speed up you bot __significantly__, but it has unwanted side effects if used without caution.
+### Using local Bot API Sever
+Since version 5.0 of the Bot API, you have the possibility to run your own [Local Bot API Server](https://core.telegram.org/bots/api#using-a-local-bot-api-server).
+pyTelegramBotAPI also supports this feature.
+```python
+from telebot import apihelper
+
+apihelper.API_URL = "http://localhost:4200/bot{0}/{1}"
+```
+**Important: Like described [here](https://core.telegram.org/bots/api#logout), you have to log out your bot from the Telegram server before switching to your local API server. in pyTelegramBotAPI use `bot.log_out()`**
+
+*Note: 4200 is an example port*
+
+### Asynchronous TeleBot
+New: There is an asynchronous implementation of telebot.
 To enable this behaviour, create an instance of AsyncTeleBot instead of TeleBot.
 ```python
 tb = telebot.AsyncTeleBot("TOKEN")
 ```
-Now, every function that calls the Telegram API is executed in a separate Thread. The functions are modified to return an AsyncTask instance (defined in util.py). Using AsyncTeleBot allows you to do the following:
+Now, every function that calls the Telegram API is executed in a separate asynchronous task.
+Using AsyncTeleBot allows you to do the following:
 ```python
 import telebot

 tb = telebot.AsyncTeleBot("TOKEN")
-task = tb.get_me() # Execute an API call
-# Do some other operations...
-a = 0
-for a in range(100):
-	a += 10

-result = task.wait() # Get the result of the execution
+@tb.message_handler(commands=['start'])
+async def start_message(message):
+	await bot.send_message(message.chat.id, 'Hello!')
+
 ```
-*Note: if you execute send_xyz functions after eachother without calling wait(), the order in which messages are delivered might be wrong.*
+
+See more in [examples](https://github.com/eternnoir/pyTelegramBotAPI/tree/master/examples/asynchronous_telebot)

 ### Sending large text messages
 Sometimes you must send messages that exceed 5000 characters. The Telegram API can not handle that many characters in one request, so we need to split the message in multiples. Here is how to do that using the API:
@ -477,6 +587,19 @@ large_text = open("large_text.txt", "rb").read()
 # Split the text each 3000 characters.
 # split_string returns a list with the splitted text.
 splitted_text = util.split_string(large_text, 3000)
+
+for text in splitted_text:
+	tb.send_message(chat_id, text)
+```
+
+Or you can use the new `smart_split` function to get more meaningful substrings:
+```python
+from telebot import util
+large_text = open("large_text.txt", "rb").read()
+# Splits one string into multiple strings, with a maximum amount of `chars_per_string` (max. 4096)
+# Splits by last '\n', '. ' or ' ' in exactly this priority.
+# smart_split returns a list with the splitted text.
+splitted_text = util.smart_split(large_text, chars_per_string=3000)
 for text in splitted_text:
 	tb.send_message(chat_id, text)
 ```
@ -498,16 +621,15 @@ def handle_messages(messages):
 		bot.reply_to(message, 'Hi')

 bot.set_update_listener(handle_messages)
-bot.polling()
+bot.infinity_polling()
 ```

 ### Using web hooks
 When using webhooks telegram sends one Update per call, for processing it you should call process_new_messages([update.message]) when you recieve it.

-There are some examples using webhooks in the *examples/webhook_examples* directory.
+There are some examples using webhooks in the [examples/webhook_examples](examples/webhook_examples) directory.

 ### Logging
-
 You can use the Telebot module logger to log debug info about Telebot. Use `telebot.logger` to get the logger of the TeleBot module.
 It is possible to add custom logging Handlers to the logger. Refer to the [Python logging module page](https://docs.python.org/2/library/logging.html) for more info.

@ -519,13 +641,12 @@ telebot.logger.setLevel(logging.DEBUG) # Outputs debug messages to console.
 ```

 ### Proxy
-
 You can use proxy for request. `apihelper.proxy` object will use by call `requests` proxies argument.

 ```python
 from telebot import apihelper

-apihelper.proxy = {'http':'http://10.10.1.10:3128'}
+apihelper.proxy = {'http':'http://127.0.0.1:3128'}
 ```

 If you want to use socket5 proxy you need install dependency `pip install requests[socks]` and make sure, that you have the latest version of `gunicorn`, `PySocks`, `pyTelegramBotAPI`, `requests` and `urllib3`.
@ -534,42 +655,102 @@ If you want to use socket5 proxy you need install dependency `pip install reques
 apihelper.proxy = {'https':'socks5://userproxy:password@proxy_address:port'}
 ```

+### Testing
+You can disable or change the interaction with real Telegram server by using
+```python
+apihelper.CUSTOM_REQUEST_SENDER = your_handler
+```
+parameter. You can pass there your own function that will be called instead of _requests.request_.
+
+For example:
+```python
+def custom_sender(method, url, **kwargs):
+    print("custom_sender. method: {}, url: {}, params: {}".format(method, url, kwargs.get("params")))
+    result = util.CustomRequestResponse('{"ok":true,"result":{"message_id": 1, "date": 1, "chat": {"id": 1, "type": "private"}}}')
+    return result
+```
+
+Then you can use API and proceed requests in your handler code.
+```python
+apihelper.CUSTOM_REQUEST_SENDER = custom_sender
+tb = TeleBot("test")
+res = tb.send_message(123, "Test")
+```
+
+Result will be:
+
+`custom_sender. method: post, url: https://api.telegram.org/botololo/sendMessage, params: {'chat_id': '123', 'text': 'Test'}`
+
+

 ## API conformance

-_Checking is in progress..._
-
-✅ [Bot API 3.5](https://core.telegram.org/bots/api-changelog#november-17-2017) _- To be checked..._
-
-* ✔ [Bot API 3.4](https://core.telegram.org/bots/api-changelog#october-11-2017)
-* ✔ [Bot API 3.3](https://core.telegram.org/bots/api-changelog#august-23-2017)
-* ✔ [Bot API 3.2](https://core.telegram.org/bots/api-changelog#july-21-2017)
-* ✔ [Bot API 3.1](https://core.telegram.org/bots/api-changelog#june-30-2017)
-* ✔ [Bot API 3.0](https://core.telegram.org/bots/api-changelog#may-18-2017)
-* ✔ [Bot API 2.3.1](https://core.telegram.org/bots/api-changelog#december-4-2016)
-* ✔ [Bot API 2.3](https://core.telegram.org/bots/api-changelog#november-21-2016)
-* ✔ [Bot API 2.2](https://core.telegram.org/bots/api-changelog#october-3-2016)
-* ✔ [Bot API 2.1](https://core.telegram.org/bots/api-changelog#may-22-2016)
-* ✔ [Bot API 2.0](https://core.telegram.org/bots/api-changelog#april-9-2016) 
+* ✔ [Bot API 5.5](https://core.telegram.org/bots/api#december-7-2021)
+* ✔ [Bot API 5.4](https://core.telegram.org/bots/api#november-5-2021)
+* ➕ [Bot API 5.3](https://core.telegram.org/bots/api#june-25-2021) - ChatMember* classes are full copies of ChatMember
+* ✔ [Bot API 5.2](https://core.telegram.org/bots/api#april-26-2021)
+* ✔ [Bot API 5.1](https://core.telegram.org/bots/api#march-9-2021)
+* ✔ [Bot API 5.0](https://core.telegram.org/bots/api-changelog#november-4-2020)
+* ✔ [Bot API 4.9](https://core.telegram.org/bots/api-changelog#june-4-2020)
+* ✔ [Bot API 4.8](https://core.telegram.org/bots/api-changelog#april-24-2020)
+* ✔ [Bot API 4.7](https://core.telegram.org/bots/api-changelog#march-30-2020)
+* ✔ [Bot API 4.6](https://core.telegram.org/bots/api-changelog#january-23-2020)
+* ➕ [Bot API 4.5](https://core.telegram.org/bots/api-changelog#december-31-2019) - No nested MessageEntities and Markdown2 support
+* ✔ [Bot API 4.4](https://core.telegram.org/bots/api-changelog#july-29-2019)
+* ✔ [Bot API 4.3](https://core.telegram.org/bots/api-changelog#may-31-2019)
+* ✔ [Bot API 4.2](https://core.telegram.org/bots/api-changelog#april-14-2019)
+* ➕ [Bot API 4.1](https://core.telegram.org/bots/api-changelog#august-27-2018) - No Passport support
+* ➕ [Bot API 4.0](https://core.telegram.org/bots/api-changelog#july-26-2018)   - No Passport support


-## Change log
+## AsyncTeleBot
+### Asynchronous version of telebot
+We have a fully asynchronous version of TeleBot.
+This class is not controlled by threads. Asyncio tasks are created to execute all the stuff.

-27.04.2020 - Poll and Dice are up to date.
-Python2 conformance is not checked any more due to EOL. 
+### EchoBot
+Echo Bot example on AsyncTeleBot:
+	
+```python
+# This is a simple echo bot using the decorator mechanism.
+# It echoes any incoming text messages.

-11.04.2020 - Refactoring. new_chat_member is out of support. Bugfix in html_text. Started Bot API conformance checking.
+from telebot.async_telebot import AsyncTeleBot
+bot = AsyncTeleBot('TOKEN')

-06.06.2019 - Added polls support (Poll). Added functions send_poll, stop_poll
+
+
+# Handle '/start' and '/help'
+@bot.message_handler(commands=['help', 'start'])
+async def send_welcome(message):
+    await bot.reply_to(message, """\
+Hi there, I am EchoBot.
+I am here to echo your kind words back to you. Just say anything nice and I'll say the exact same thing to you!\
+""")
+
+
+# Handle all other messages with content_type 'text' (content_types defaults to ['text'])
+@bot.message_handler(func=lambda message: True)
+async def echo_message(message):
+    await bot.reply_to(message, message.text)
+
+
+bot.polling()
+```
+As you can see here, keywords are await and async. 
+	
+### Why should I use async?
+Asynchronous tasks depend on processor performance. Many asynchronous tasks can run parallelly, while thread tasks will block each other.
+
+### Differences in AsyncTeleBot
+AsyncTeleBot has different middlewares. See example on [middlewares](https://github.com/coder2020official/pyTelegramBotAPI/tree/master/examples/asynchronous_telebot/middleware)
+	
+### Examples
+See more examples in our [examples](https://github.com/coder2020official/pyTelegramBotAPI/tree/master/examples/asynchronous_telebot) folder
+	

 ## F.A.Q.

-### Bot 2.0
-
-April 9,2016 Telegram release new bot 2.0 API, which has a drastic revision especially for the change of method's interface.If you want to update to the latest version, please make sure you've switched bot's code to bot 2.0 method interface.
-
-[More information about pyTelegramBotAPI support bot2.0](https://github.com/eternnoir/pyTelegramBotAPI/issues/130)
-
 ### How can I distinguish a User and a GroupChat in message.chat?
 Telegram Bot API support new type Chat for message.chat.

@ -577,7 +758,7 @@ Telegram Bot API support new type Chat for message.chat.
 -
 ```python
 if message.chat.type == "private":
-	# private chat message
+    # private chat message

 if message.chat.type == "group":
 	# group chat message
@ -590,12 +771,15 @@ if message.chat.type == "channel":

 ```

+### How can I handle reocurring ConnectionResetErrors?
+
+Bot instances that were idle for a long time might be rejected by the server when sending a message due to a timeout of the last used session. Add `apihelper.SESSION_TIME_TO_LIVE = 5 * 60` to your initialisation to force recreation after 5 minutes without any activity. 
+
 ## The Telegram Chat Group

 Get help. Discuss. Chat.

 * Join the [pyTelegramBotAPI Telegram Chat Group](https://telegram.me/joinchat/Bn4ixj84FIZVkwhk2jag6A)
-* We now have a Telegram Channel as well! Keep yourself up to date with API changes, and [join it](https://telegram.me/pytelegrambotapi).

 ## More examples

@ -606,50 +790,49 @@ Get help. Discuss. Chat.
 ## Bots using this API
 * [SiteAlert bot](https://telegram.me/SiteAlert_bot) ([source](https://github.com/ilteoood/SiteAlert-Python)) by *ilteoood* - Monitors websites and sends a notification on changes
 * [TelegramLoggingBot](https://github.com/aRandomStranger/TelegramLoggingBot) by *aRandomStranger*
-* [Send to Kindle Bot](https://telegram.me/Send2KindleBot) by *GabrielRF* - Send to Kindle files or links to files.
-* [Telegram LMGTFY_bot](https://github.com/GabrielRF/telegram-lmgtfy_bot) ([source](https://github.com/GabrielRF/telegram-lmgtfy_bot)) by *GabrielRF* - Let me Google that for you.
-* [Telegram UrlProBot](https://github.com/GabrielRF/telegram-urlprobot) ([source](https://github.com/GabrielRF/telegram-urlprobot)) by *GabrielRF* - URL shortener and URL expander.
-* [Telegram Proxy Bot](https://bitbucket.org/master_groosha/telegram-proxy-bot) by *Groosha* - A simple BITM (bot-in-the-middle) for Telegram acting as some kind of "proxy".
-* [Telegram Proxy Bot](https://github.com/mrgigabyte/proxybot) by *mrgigabyte* - `Credits for the original version of this bot goes to` **Groosha** `, simply added certain features which I thought were needed`.
+* [Telegram LMGTFY_bot](https://github.com/GabrielRF/telegram-lmgtfy_bot) by *GabrielRF* - Let me Google that for you.
+* [Telegram Proxy Bot](https://github.com/mrgigabyte/proxybot) by *mrgigabyte* 
 * [RadRetroRobot](https://github.com/Tronikart/RadRetroRobot) by *Tronikart* - Multifunctional Telegram Bot RadRetroRobot.
 * [League of Legends bot](https://telegram.me/League_of_Legends_bot) ([source](https://github.com/i32ropie/lol)) by *i32ropie*
 * [NeoBot](https://github.com/neoranger/NeoBot) by [@NeoRanger](https://github.com/neoranger)
-* [TagAlertBot](https://github.com/pitasi/TagAlertBot) by *pitasi*
+* [ColorCodeBot](https://t.me/colorcodebot) ([source](https://github.com/andydecleyre/colorcodebot)) - Share code snippets as beautifully syntax-highlighted HTML and/or images.
 * [ComedoresUGRbot](http://telegram.me/ComedoresUGRbot) ([source](https://github.com/alejandrocq/ComedoresUGRbot)) by [*alejandrocq*](https://github.com/alejandrocq) - Telegram bot to check the menu of Universidad de Granada dining hall.
-* [picpingbot](https://web.telegram.org/#/im?p=%40picpingbot) - Fun anonymous photo exchange by Boogie Muffin.
-* [TheZigZagProject](https://github.com/WebShark025/TheZigZagProject) - The 'All In One' bot for Telegram! by WebShark025
 * [proxybot](https://github.com/p-hash/proxybot) - Simple Proxy Bot for Telegram. by p-hash
-* [DonantesMalagaBot](https://github.com/vfranch/DonantesMalagaBot)- DonantesMalagaBot facilitates information to Malaga blood donors about the places where they can donate today or in the incoming days. It also records the date of the last donation so that it helps the donors to know when they can donate again. - by vfranch
+* [DonantesMalagaBot](https://github.com/vfranch/DonantesMalagaBot) - DonantesMalagaBot facilitates information to Malaga blood donors about the places where they can donate today or in the incoming days. It also records the date of the last donation so that it helps the donors to know when they can donate again. - by vfranch
 * [DuttyBot](https://github.com/DmytryiStriletskyi/DuttyBot) by *Dmytryi Striletskyi* - Timetable for one university in Kiev.
-* [dailypepebot](https://telegram.me/dailypepebot) by [*Jaime*](https://github.com/jiwidi/Dailypepe) - Get's you random pepe images and gives you their id, then you can call this image with the number.
-* [DailyQwertee](https://t.me/DailyQwertee) by [*Jaime*](https://github.com/jiwidi/DailyQwertee) - Bot that manages a channel that sends qwertee daily tshirts every day at 00:00
 * [wat-bridge](https://github.com/rmed/wat-bridge) by [*rmed*](https://github.com/rmed) - Send and receive messages to/from WhatsApp through Telegram
-* [flibusta_bot](https://github.com/Kurbezz/flibusta_bot) by [*Kurbezz*](https://github.com/Kurbezz)
-* [EmaProject](https://github.com/halkliff/emaproject) by [*halkliff*](https://github.com/halkliff) - Ema - Eastern Media Assistant was made thinking on the ease-to-use feature. Coding here is simple, as much as is fast and powerful.
 * [filmratingbot](http://t.me/filmratingbot)([source](https://github.com/jcolladosp/film-rating-bot)) by [*jcolladosp*](https://github.com/jcolladosp) - Telegram bot using the Python API that gets films rating from IMDb and metacritic
-* [you2mp3bot](http://t.me/you2mp3bot)([link](https://storebot.me/bot/you2mp3bot)) - This bot can convert a Youtube video to Mp3. All you need is send the URL video.
 * [Send2Kindlebot](http://t.me/Send2KindleBot) ([source](https://github.com/GabrielRF/Send2KindleBot)) by *GabrielRF* - Send to Kindle service.
 * [RastreioBot](http://t.me/RastreioBot) ([source](https://github.com/GabrielRF/RastreioBot)) by *GabrielRF* - Bot used to track packages on the Brazilian Mail Service.
-* [filex_bot](http://t.me/filex_bot)([link](https://github.com/victor141516/FileXbot-telegram))
 * [Spbu4UBot](http://t.me/Spbu4UBot)([link](https://github.com/EeOneDown/spbu4u)) by *EeOneDown* - Bot with timetables for SPbU students.
 * [SmartySBot](http://t.me/ZDU_bot)([link](https://github.com/0xVK/SmartySBot)) by *0xVK* - Telegram timetable bot, for Zhytomyr Ivan Franko State University students.
-* [yandex_music_bot](http://t.me/yandex_music_bot)- Downloads tracks/albums/public playlists from Yandex.Music streaming service for free.
 * [LearnIt](https://t.me/LearnItbot)([link](https://github.com/tiagonapoli/LearnIt)) - A Telegram Bot created to help people to memorize other languages’ vocabulary.
-* [MusicQuiz_bot](https://t.me/MusicQuiz_bot) by [Etoneja](https://github.com/Etoneja) - Listen to audio samples and try to name the performer of the song.
 * [Bot-Telegram-Shodan ](https://github.com/rubenleon/Bot-Telegram-Shodan) by [rubenleon](https://github.com/rubenleon)
-* [MandangoBot](https://t.me/MandangoBot) by @Alvaricias - Bot for managing Marvel Strike Force alliances (only in spanish, atm).
-* [ManjaroBot](https://t.me/ManjaroBot) by [@NeoRanger](https://github.com/neoranger) - Bot for Manjaro Linux Spanish group with a lot of info for Manjaro Newbies.
 * [VigoBusTelegramBot](https://t.me/vigobusbot) ([GitHub](https://github.com/Pythoneiro/VigoBus-TelegramBot)) - Bot that provides buses coming to a certain stop and their remaining time for the city of Vigo (Galicia - Spain)
 * [kaishnik-bot](https://t.me/kaishnik_bot) ([source](https://github.com/airatk/kaishnik-bot)) by *airatk* - bot which shows all the necessary information to KNTRU-KAI students.
-* [Creation Date](https://t.me/creationdatebot) by @karipov - interpolates account creation dates based on telegram given ID’s
-* [m0xbot](https://t.me/m0xbot) by [kor0p](https://github.com/kor0p) - tic-tac-toe.  
-* [kboardbot](https://t.me/kboardbot) by [kor0p](https://github.com/kor0p) - inline switches keyboard layout (English, Hebrew, Ukrainian, Russian).  
 * [Robbie](https://t.me/romdeliverybot) ([source](https://github.com/FacuM/romdeliverybot_support)) by @FacuM - Support Telegram bot for developers and maintainers.
 * [AsadovBot](https://t.me/asadov_bot) ([source](https://github.com/desexcile/BotApi)) by @DesExcile - Сatalog of poems by Eduard Asadov.
 * [thesaurus_com_bot](https://t.me/thesaurus_com_bot) ([source](https://github.com/LeoSvalov/words-i-learn-bot)) by @LeoSvalov - words and synonyms from [dictionary.com](https://www.dictionary.com) and [thesaurus.com](https://www.thesaurus.com) in the telegram.
 * [InfoBot](https://t.me/info2019_bot) ([source](https://github.com/irevenko/info-bot)) by @irevenko - An all-round bot that displays some statistics (weather, time, crypto etc...)
 * [FoodBot](https://t.me/ChensonUz_bot) ([source](https://github.com/Fliego/old_restaurant_telegram_chatbot)) by @Fliego - a simple bot for food ordering
 * [Sporty](https://t.me/SportydBot) ([source](https://github.com/0xnu/sporty)) by @0xnu - Telegram bot for displaying the latest news, sports schedules and injury updates.
-* [Neural style transfer](https://t.me/ebanyivolshebnikBot) ([source](https://github.com/timbyxty/StyleTransfer-tgbot)) by @timbyxty - bot for transferring style from one picture to another based on neural network.
-
-Want to have your bot listed here? Send a Telegram message to @eternnoir or @pevdh.
+* [JoinGroup Silencer Bot](https://t.me/joingroup_silencer_bot) ([source](https://github.com/zeph1997/Telegram-Group-Silencer-Bot)) by [@zeph1997](https://github.com/zeph1997) - A Telegram Bot to remove "join group" and "removed from group" notifications.
+* [TasksListsBot](https://t.me/TasksListsBot) ([source](https://github.com/Pablo-Davila/TasksListsBot)) by [@Pablo-Davila](https://github.com/Pablo-Davila) - A (tasks) lists manager bot for Telegram.
+* [MyElizaPsychologistBot](https://t.me/TasksListsBot) ([source](https://github.com/Pablo-Davila/MyElizaPsychologistBot)) by [@Pablo-Davila](https://github.com/Pablo-Davila) - An implementation of the famous Eliza psychologist chatbot.
+* [Frcstbot](https://t.me/frcstbot) ([source](https://github.com/Mrsqd/frcstbot_public)) by [Mrsqd](https://github.com/Mrsqd). A Telegram bot that will always be happy to show you the weather forecast.
+* [MineGramBot](https://github.com/ModischFabrications/MineGramBot) by [ModischFabrications](https://github.com/ModischFabrications). This bot can start, stop and monitor a minecraft server.
+* [Tabletop DiceBot](https://github.com/dexpiper/tabletopdicebot) by [dexpiper](https://github.com/dexpiper). This bot can roll multiple dices for RPG-like games, add positive and negative modifiers and show short descriptions to the rolls.
+* [BarnameKon](https://t.me/BarnameKonBot) by [Anvaari](https://github.com/anvaari). This Bot make "Add to google calendar" link for your events. It give information about event and return link. It work for Jalali calendar and in Tehran Time. [Source code](https://github.com/anvaari/BarnameKon)
+* [Translator bot](https://github.com/AREEG94FAHAD/translate_text_bot) by Areeg Fahad. This bot can be used to translate texts. 
+* [Digital Cryptocurrency bot](https://github.com/AREEG94FAHAD/currencies_bot) by Areeg Fahad. With this bot, you can now monitor the prices of more than 12 digital Cryptocurrency. 
+* [Anti-Tracking Bot](https://t.me/AntiTrackingBot) by Leon Heess [(source)](https://github.com/leonheess/AntiTrackingBot). Send any link, and the bot tries its best to remove all tracking from the link you sent.
+* [Developer Bot](https://t.me/IndDeveloper_bot) by [Vishal Singh](https://github.com/vishal2376) [(source code)](https://github.com/vishal2376/telegram-bot) This telegram bot can do tasks like GitHub search & clone,provide c++ learning resources ,Stackoverflow search, Codeforces(profile visualizer,random problems)
+* [oneIPO bot](https://github.com/aaditya2200/IPO-proj) by [Aadithya](https://github.com/aaditya2200) & [Amol Soans](https://github.com/AmolDerickSoans) This Telegram bot provides live updates , data and documents on current and upcoming IPOs(Initial Public Offerings) 
+* [CoronaGraphsBot](https://t.me/CovidGraph_bot) ([source](https://github.com/TrevorWinstral/CoronaGraphsBot)) by *TrevorWinstral* - Gets live COVID Country data, plots it, and briefs the user
+* [ETHLectureBot](https://t.me/ETHLectureBot) ([source](https://github.com/TrevorWinstral/ETHLectureBot)) by *TrevorWinstral* - Notifies ETH students when their lectures have been uploaded
+* [Vlun Finder Bot](https://github.com/resinprotein2333/Vlun-Finder-bot) by [Resinprotein2333](https://github.com/resinprotein2333). This bot can help you to find The information of CVE vulnerabilities.
+* [ETHGasFeeTrackerBot](https://t.me/ETHGasFeeTrackerBot) ([Source](https://github.com/DevAdvik/ETHGasFeeTrackerBot]) by *DevAdvik* - Get Live Ethereum Gas Fees in GWEI
+* [Google Sheet Bot](https://github.com/JoachimStanislaus/Tele_Sheet_bot) by [JoachimStanislaus](https://github.com/JoachimStanislaus). This bot can help you to track your expenses by uploading your bot entries to your google sheet.
+* [GrandQuiz Bot](https://github.com/Carlosma7/TFM-GrandQuiz) by [Carlosma7](https://github.com/Carlosma7). This bot is a trivia game that allows you to play with people from different ages. This project addresses the use of a system through chatbots to carry out a social and intergenerational game as an alternative to traditional game development.
+	
+**Want to have your bot listed here? Just make a pull request. Only bots with public source code are accepted.**
--- a/examples/CallbackData_example.py
+++ b/examples/CallbackData_example.py
@ -0,0 +1,86 @@
+# -*- coding: utf-8 -*-
+"""
+This Example will show you how to use CallbackData
+"""
+
+from telebot.callback_data import CallbackData, CallbackDataFilter
+from telebot import types, TeleBot
+from telebot.custom_filters import AdvancedCustomFilter
+
+API_TOKEN = ''
+PRODUCTS = [
+    {'id': '0', 'name': 'xiaomi mi 10', 'price': 400},
+    {'id': '1', 'name': 'samsung s20', 'price': 800},
+    {'id': '2', 'name': 'iphone 13', 'price': 1300}
+]
+
+bot = TeleBot(API_TOKEN)
+products_factory = CallbackData('product_id', prefix='products')
+
+
+def products_keyboard():
+    return types.InlineKeyboardMarkup(
+        keyboard=[
+            [
+                types.InlineKeyboardButton(
+                    text=product['name'],
+                    callback_data=products_factory.new(product_id=product["id"])
+                )
+            ]
+            for product in PRODUCTS
+        ]
+    )
+
+
+def back_keyboard():
+    return types.InlineKeyboardMarkup(
+        keyboard=[
+            [
+                types.InlineKeyboardButton(
+                    text='⬅',
+                    callback_data='back'
+                )
+            ]
+        ]
+    )
+
+
+class ProductsCallbackFilter(AdvancedCustomFilter):
+    key = 'config'
+
+    def check(self, call: types.CallbackQuery, config: CallbackDataFilter):
+        return config.check(query=call)
+
+
+@bot.message_handler(commands=['products'])
+def products_command_handler(message: types.Message):
+    bot.send_message(message.chat.id, 'Products:', reply_markup=products_keyboard())
+
+
+# Only product with field - product_id = 2
+@bot.callback_query_handler(func=None, config=products_factory.filter(product_id='2'))
+def product_one_callback(call: types.CallbackQuery):
+    bot.answer_callback_query(callback_query_id=call.id, text='Not available :(', show_alert=True)
+
+
+# Any other products
+@bot.callback_query_handler(func=None, config=products_factory.filter())
+def products_callback(call: types.CallbackQuery):
+    callback_data: dict = products_factory.parse(callback_data=call.data)
+    product_id = int(callback_data['product_id'])
+    product = PRODUCTS[product_id]
+
+    text = f"Product name: {product['name']}\n" \
+           f"Product price: {product['price']}"
+    bot.edit_message_text(chat_id=call.message.chat.id, message_id=call.message.message_id,
+                          text=text, reply_markup=back_keyboard())
+
+
+@bot.callback_query_handler(func=lambda c: c.data == 'back')
+def back_callback(call: types.CallbackQuery):
+    bot.edit_message_text(chat_id=call.message.chat.id, message_id=call.message.message_id,
+                          text='Products:', reply_markup=products_keyboard())
+
+
+bot.add_custom_filter(ProductsCallbackFilter())
+bot.infinity_polling()
--- a/examples/anonymous_bot.py
+++ b/examples/anonymous_bot.py
@ -0,0 +1,117 @@
+# This bot is needed to connect two people and their subsequent anonymous communication
+#
+# Avaiable commands:
+# `/start` - Just send you a messsage how to start
+# `/find` - Find a person you can contact
+# `/stop` - Stop active conversation
+
+import telebot
+from telebot import types
+
+# Initialize bot with your token
+bot = telebot.TeleBot(TOKEN)
+
+# The `users` variable is needed to contain chat ids that are either in the search or in the active dialog, like {chat_id, chat_id}
+users = {}
+# The `freeid` variable is needed to contain chat id, that want to start conversation
+# Or, in other words: chat id of user in the search
+freeid = None
+
+# `/start` command handler
+#
+# That command only sends you 'Just use /find command!'
+@bot.message_handler(commands=['start'])
+def start(message: types.Message):
+    bot.send_message(message.chat.id, 'Just use /find command!')
+
+# `/find` command handler
+#
+# That command finds opponent for you
+#
+# That command according to the following principle:
+# 1. You have written `/find` command
+# 2. If you are already in the search or have an active dialog, bot sends you 'Shut up!'
+# 3. If not:
+#   3.1. Bot sends you 'Finding...'
+#   3.2. If there is no user in the search:
+#       3.2.2. `freeid` updated with `your_chat_id`
+#   3.3. If there is user in the search:
+#       3.3.1. Both you and the user in the search recieve the message 'Founded!'
+#       3.3.2. `users` updated with a {user_in_the_search_chat_id, your_chat_id}
+#       3.3.3. `users` updated with a {your_chat_id, user_in_the_search_id}
+#       3.3.4. `freeid` updated with `None`
+@bot.message_handler(commands=['find'])
+def find(message: types.Message):
+    global freeid
+
+    if message.chat.id not in users:
+        bot.send_message(message.chat.id, 'Finding...')
+
+        if freeid == None:
+            freeid = message.chat.id
+        else:
+            # Question:
+            # Is there any way to simplify this like `bot.send_message([message.chat.id, freeid], 'Founded!')`?
+            bot.send_message(message.chat.id, 'Founded!')
+            bot.send_message(freeid, 'Founded!')
+
+            users[freeid] = message.chat.id
+            users[message.chat.id] = freeid
+            freeid = None
+
+        print(users, freeid) # Debug purpose, you can remove that line
+    else:
+        bot.send_message(message.chat.id, 'Shut up!')
+
+# `/stop` command handler
+#
+# That command stops your current conversation (if it exist)
+#
+# That command according to the following principle:
+# 1. You have written `/stop` command
+# 2. If you are not have active dialog or you are not in search, bot sends you 'You are not in search!'
+# 3. If you are in active dialog:
+#   3.1. Bot sends you 'Stopping...'
+#   3.2. Bot sends 'Your opponent is leavin`...' to your opponent
+#   3.3. {your_opponent_chat_id, your_chat_id} removes from `users`
+#   3.4. {your_chat_id, your_opponent_chat_id} removes from `users`
+# 4. If you are only in search:
+#   4.1. Bot sends you 'Stopping...'
+#   4.2. `freeid` updated with `None`
+@bot.message_handler(commands=['stop'])
+def stop(message: types.Message):
+    global freeid
+
+    if message.chat.id in users:
+        bot.send_message(message.chat.id, 'Stopping...')
+        bot.send_message(users[message.chat.id], 'Your opponent is leavin`...')
+
+        del users[users[message.chat.id]]
+        del users[message.chat.id]
+        
+        print(users, freeid) # Debug purpose, you can remove that line
+    elif message.chat.id == freeid:
+        bot.send_message(message.chat.id, 'Stopping...')
+        freeid = None
+
+        print(users, freeid) # Debug purpose, you can remove that line
+    else:
+        bot.send_message(message.chat.id, 'You are not in search!')
+
+# message handler for conversation
+#
+# That handler needed to send message from one opponent to another
+# If you are not in `users`, you will recieve a message 'No one can hear you...'
+# Otherwise all your messages are sent to your opponent
+#
+# Questions:
+# 1. Is there any way to improve readability like `content_types=['all']`?
+# 2. Is there any way to register this message handler only when i found the opponent?
+@bot.message_handler(content_types=['animation', 'audio', 'contact', 'dice', 'document', 'location', 'photo', 'poll', 'sticker', 'text', 'venue', 'video', 'video_note', 'voice'])
+def chatting(message: types.Message):
+    if message.chat.id in users:
+        bot.copy_message(users[message.chat.id], users[users[message.chat.id]], message.id)
+    else:
+        bot.send_message(message.chat.id, 'No one can hear you...')
+
+bot.infinity_polling(skip_pending=True)
--- a/examples/asynchronous_telebot/CallbackData_example.py
+++ b/examples/asynchronous_telebot/CallbackData_example.py
@ -0,0 +1,87 @@
+# -*- coding: utf-8 -*-
+"""
+This Example will show you how to use CallbackData
+"""
+
+from telebot.callback_data import CallbackData, CallbackDataFilter
+from telebot import types
+from telebot.async_telebot import AsyncTeleBot
+from telebot.asyncio_filters import AdvancedCustomFilter
+
+API_TOKEN = 'TOKEN'
+PRODUCTS = [
+    {'id': '0', 'name': 'xiaomi mi 10', 'price': 400},
+    {'id': '1', 'name': 'samsung s20', 'price': 800},
+    {'id': '2', 'name': 'iphone 13', 'price': 1300}
+]
+
+bot = AsyncTeleBot(API_TOKEN)
+products_factory = CallbackData('product_id', prefix='products')
+
+
+def products_keyboard():
+    return types.InlineKeyboardMarkup(
+        keyboard=[
+            [
+                types.InlineKeyboardButton(
+                    text=product['name'],
+                    callback_data=products_factory.new(product_id=product["id"])
+                )
+            ]
+            for product in PRODUCTS
+        ]
+    )
+
+
+def back_keyboard():
+    return types.InlineKeyboardMarkup(
+        keyboard=[
+            [
+                types.InlineKeyboardButton(
+                    text='⬅',
+                    callback_data='back'
+                )
+            ]
+        ]
+    )
+
+
+class ProductsCallbackFilter(AdvancedCustomFilter):
+    key = 'config'
+
+    async def check(self, call: types.CallbackQuery, config: CallbackDataFilter):
+        return config.check(query=call)
+
+
+@bot.message_handler(commands=['products'])
+async def products_command_handler(message: types.Message):
+    await bot.send_message(message.chat.id, 'Products:', reply_markup=products_keyboard())
+
+
+# Only product with field - product_id = 2
+@bot.callback_query_handler(func=None, config=products_factory.filter(product_id='2'))
+async def product_one_callback(call: types.CallbackQuery):
+    await bot.answer_callback_query(callback_query_id=call.id, text='Not available :(', show_alert=True)
+
+
+# Any other products
+@bot.callback_query_handler(func=None, config=products_factory.filter())
+async def products_callback(call: types.CallbackQuery):
+    callback_data: dict = products_factory.parse(callback_data=call.data)
+    product_id = int(callback_data['product_id'])
+    product = PRODUCTS[product_id]
+
+    text = f"Product name: {product['name']}\n" \
+           f"Product price: {product['price']}"
+    await bot.edit_message_text(chat_id=call.message.chat.id, message_id=call.message.message_id,
+                          text=text, reply_markup=back_keyboard())
+
+
+@bot.callback_query_handler(func=lambda c: c.data == 'back')
+async def back_callback(call: types.CallbackQuery):
+    await bot.edit_message_text(chat_id=call.message.chat.id, message_id=call.message.message_id,
+                          text='Products:', reply_markup=products_keyboard())
+
+
+bot.add_custom_filter(ProductsCallbackFilter())
+bot.polling()
--- a/examples/asynchronous_telebot/chat_join_request.py
+++ b/examples/asynchronous_telebot/chat_join_request.py
@ -0,0 +1,11 @@
+from telebot.async_telebot import AsyncTeleBot
+
+import telebot
+bot = AsyncTeleBot('TOKEN')
+
+@bot.chat_join_request_handler()
+async def make_some(message: telebot.types.ChatJoinRequest):
+    await bot.send_message(message.chat.id, 'I accepted a new user!')
+    await bot.approve_chat_join_request(message.chat.id, message.from_user.id)
+
+bot.polling(skip_pending=True)
--- a/examples/asynchronous_telebot/chat_member_example.py
+++ b/examples/asynchronous_telebot/chat_member_example.py
@ -0,0 +1,33 @@
+from telebot import types,util
+from telebot.async_telebot import AsyncTeleBot
+
+bot = AsyncTeleBot('TOKEN')
+
+#chat_member_handler. When status changes, telegram gives update. check status from old_chat_member and new_chat_member.
+@bot.chat_member_handler()
+async def chat_m(message: types.ChatMemberUpdated):
+    old = message.old_chat_member
+    new = message.new_chat_member
+    if new.status == "member":
+        await bot.send_message(message.chat.id,"Hello {name}!".format(name=new.user.first_name)) # Welcome message
+
+#if bot is added to group, this handler will work
+@bot.my_chat_member_handler()
+async def my_chat_m(message: types.ChatMemberUpdated):
+    old = message.old_chat_member
+    new = message.new_chat_member
+    if new.status == "member":
+        await bot.send_message(message.chat.id,"Somebody added me to group") # Welcome message, if bot was added to group
+        await bot.leave_chat(message.chat.id)
+
+#content_Type_service is:
+#'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',
+#'proximity_alert_triggered', 'voice_chat_scheduled', 'voice_chat_started', 'voice_chat_ended', 
+#'voice_chat_participants_invited', 'message_auto_delete_timer_changed'
+# this handler deletes service messages
+
+@bot.message_handler(content_types=util.content_type_service)
+async def delall(message: types.Message):
+    await bot.delete_message(message.chat.id,message.message_id)
+bot.polling()
--- a/examples/asynchronous_telebot/custom_filters/admin_filter_example.py
+++ b/examples/asynchronous_telebot/custom_filters/admin_filter_example.py
@ -0,0 +1,12 @@
+from telebot.async_telebot import AsyncTeleBot
+from telebot import asyncio_filters
+bot = AsyncTeleBot('TOKEN')
+
+# Handler
+@bot.message_handler(chat_types=['supergroup'], is_chat_admin=True)
+async def answer_for_admin(message):
+    await bot.send_message(message.chat.id,"hello my admin")
+
+# Register filter
+bot.add_custom_filter(asyncio_filters.IsAdminFilter(bot))
+bot.polling()
--- a/examples/asynchronous_telebot/custom_filters/general_custom_filters.py
+++ b/examples/asynchronous_telebot/custom_filters/general_custom_filters.py
@ -0,0 +1,43 @@
+from telebot.async_telebot import AsyncTeleBot
+import telebot
+bot = AsyncTeleBot('TOKEN')
+
+
+# AdvancedCustomFilter is for list, string filter values
+class MainFilter(telebot.asyncio_filters.AdvancedCustomFilter):
+    key='text'
+    @staticmethod
+    async def check(message, text):
+        return message.text in text
+
+# SimpleCustomFilter is for boolean values, such as is_admin=True
+class IsAdmin(telebot.asyncio_filters.SimpleCustomFilter):
+    key='is_admin'
+    @staticmethod
+    async def check(message: telebot.types.Message):
+        result = await bot.get_chat_member(message.chat.id,message.from_user.id)
+        return result.status in ['administrator','creator']
+
+
+@bot.message_handler(is_admin=True, commands=['admin']) # Check if user is admin
+async def admin_rep(message):
+    await bot.send_message(message.chat.id, "Hi admin")
+
+@bot.message_handler(is_admin=False, commands=['admin']) # If user is not admin
+async def not_admin(message):
+    await bot.send_message(message.chat.id, "You are not admin")
+
+@bot.message_handler(text=['hi']) # Response to hi message
+async def welcome_hi(message):
+    await bot.send_message(message.chat.id, 'You said hi')
+
+@bot.message_handler(text=['bye']) # Response to bye message
+async def bye_user(message):
+    await bot.send_message(message.chat.id, 'You said bye')
+
+
+# Do not forget to register filters
+bot.add_custom_filter(MainFilter())
+bot.add_custom_filter(IsAdmin())
+
+bot.polling()
--- a/examples/asynchronous_telebot/custom_filters/id_filter_example.py
+++ b/examples/asynchronous_telebot/custom_filters/id_filter_example.py
@ -0,0 +1,17 @@
+from telebot.async_telebot import AsyncTeleBot
+import telebot
+bot = AsyncTeleBot('TOKEN')
+
+
+# Chat id can be private or supergroups.
+@bot.message_handler(chat_id=[12345678], commands=['admin']) # chat_id checks id corresponds to your list or not.
+async def admin_rep(message):
+    await bot.send_message(message.chat.id, "You are allowed to use this command.")
+
+@bot.message_handler(commands=['admin'])
+async def not_admin(message):
+    await bot.send_message(message.chat.id, "You are not allowed to use this command")
+
+# Do not forget to register
+bot.add_custom_filter(telebot.asyncio_filters.ChatFilter())
+bot.polling()
--- a/examples/asynchronous_telebot/custom_filters/is_filter_example.py
+++ b/examples/asynchronous_telebot/custom_filters/is_filter_example.py
@ -0,0 +1,22 @@
+from telebot.async_telebot import AsyncTeleBot
+import telebot
+
+bot = AsyncTeleBot('TOKEN')
+
+
+
+# Check if message is a reply
+@bot.message_handler(is_reply=True)
+async def start_filter(message):
+    await bot.send_message(message.chat.id, "Looks like you replied to my message.")
+
+# Check if message was forwarded
+@bot.message_handler(is_forwarded=True)
+async def text_filter(message):
+    await bot.send_message(message.chat.id, "I do not accept forwarded messages!")
+
+# Do not forget to register filters
+bot.add_custom_filter(telebot.asyncio_filters.IsReplyFilter())
+bot.add_custom_filter(telebot.asyncio_filters.ForwardFilter())
+
+bot.polling()
--- a/examples/asynchronous_telebot/custom_filters/text_filter_example.py
+++ b/examples/asynchronous_telebot/custom_filters/text_filter_example.py
@ -0,0 +1,20 @@
+from telebot.async_telebot import AsyncTeleBot
+import telebot
+bot = AsyncTeleBot('TOKEN')
+
+
+# Check if message starts with @admin tag
+@bot.message_handler(text_startswith="@admin")
+async def start_filter(message):
+    await bot.send_message(message.chat.id, "Looks like you are calling admin, wait...")
+
+# Check if text is hi or hello
+@bot.message_handler(text=['hi','hello'])
+async def text_filter(message):
+    await bot.send_message(message.chat.id, "Hi, {name}!".format(name=message.from_user.first_name))
+
+# Do not forget to register filters
+bot.add_custom_filter(telebot.asyncio_filters.TextMatchFilter())
+bot.add_custom_filter(telebot.asyncio_filters.TextStartsFilter())
+
+bot.polling()
--- a/examples/asynchronous_telebot/custom_states.py
+++ b/examples/asynchronous_telebot/custom_states.py
@ -0,0 +1,74 @@
+import telebot
+from telebot import asyncio_filters
+from telebot.async_telebot import AsyncTeleBot
+bot = AsyncTeleBot('TOKEN')
+
+
+
+class MyStates:
+    name = 1
+    surname = 2
+    age = 3
+
+
+
+@bot.message_handler(commands=['start'])
+async def start_ex(message):
+    """
+    Start command. Here we are starting state
+    """
+    await bot.set_state(message.from_user.id, MyStates.name)
+    await bot.send_message(message.chat.id, 'Hi, write me a name')
+ 
+
+ 
+@bot.message_handler(state="*", commands='cancel')
+async def any_state(message):
+    """
+    Cancel state
+    """
+    await bot.send_message(message.chat.id, "Your state was cancelled.")
+    await bot.delete_state(message.from_user.id)
+
+@bot.message_handler(state=MyStates.name)
+async def name_get(message):
+    """
+    State 1. Will process when user's state is 1.
+    """
+    await bot.send_message(message.chat.id, f'Now write me a surname')
+    await bot.set_state(message.from_user.id, MyStates.surname)
+    async with bot.retrieve_data(message.from_user.id) as data:
+        data['name'] = message.text
+ 
+ 
+@bot.message_handler(state=MyStates.surname)
+async def ask_age(message):
+    """
+    State 2. Will process when user's state is 2.
+    """
+    await bot.send_message(message.chat.id, "What is your age?")
+    await bot.set_state(message.from_user.id, MyStates.age)
+    async with bot.retrieve_data(message.from_user.id) as data:
+        data['surname'] = message.text
+ 
+# result
+@bot.message_handler(state=MyStates.age, is_digit=True)
+async def ready_for_answer(message):
+    async with bot.retrieve_data(message.from_user.id) as data:
+        await bot.send_message(message.chat.id, "Ready, take a look:\n<b>Name: {name}\nSurname: {surname}\nAge: {age}</b>".format(name=data['name'], surname=data['surname'], age=message.text), parse_mode="html")
+    await bot.delete_state(message.from_user.id)
+
+#incorrect number
+@bot.message_handler(state=MyStates.age, is_digit=False)
+async def age_incorrect(message):
+    await bot.send_message(message.chat.id, 'Looks like you are submitting a string in the field age. Please enter a number')
+
+# register filters
+
+bot.add_custom_filter(asyncio_filters.StateFilter(bot))
+bot.add_custom_filter(asyncio_filters.IsDigitFilter())
+
+# set saving states into file.
+bot.enable_saving_states() # you can delete this if you do not need to save states
+
+bot.polling()
--- a/examples/asynchronous_telebot/download_file_example.py
+++ b/examples/asynchronous_telebot/download_file_example.py
@ -0,0 +1,20 @@
+
+import telebot
+from telebot.async_telebot import AsyncTeleBot
+
+
+
+bot = AsyncTeleBot('TOKEN')
+
+
+@bot.message_handler(content_types=['photo'])
+async def new_message(message: telebot.types.Message):
+    result_message = await bot.send_message(message.chat.id, '<i>Downloading your photo...</i>', parse_mode='HTML', disable_web_page_preview=True)
+    file_path = await bot.get_file(message.photo[-1].file_id)
+    downloaded_file = await bot.download_file(file_path.file_path)
+    with open('file.jpg', 'wb') as new_file:
+        new_file.write(downloaded_file)
+    await bot.edit_message_text(chat_id=message.chat.id, message_id=result_message.id, text='<i>Done!</i>', parse_mode='HTML')
+
+
+bot.polling(skip_pending=True)
--- a/examples/asynchronous_telebot/echo_bot.py
+++ b/examples/asynchronous_telebot/echo_bot.py
@ -0,0 +1,26 @@
+#!/usr/bin/python
+
+# This is a simple echo bot using the decorator mechanism.
+# It echoes any incoming text messages.
+
+from telebot.async_telebot import AsyncTeleBot
+bot = AsyncTeleBot('TOKEN')
+
+
+
+# Handle '/start' and '/help'
+@bot.message_handler(commands=['help', 'start'])
+async def send_welcome(message):
+    await bot.reply_to(message, """\
+Hi there, I am EchoBot.
+I am here to echo your kind words back to you. Just say anything nice and I'll say the exact same thing to you!\
+""")
+
+
+# Handle all other messages with content_type 'text' (content_types defaults to ['text'])
+@bot.message_handler(func=lambda message: True)
+async def echo_message(message):
+    await bot.reply_to(message, message.text)
+
+
+bot.polling()
--- a/examples/asynchronous_telebot/exception_handler.py
+++ b/examples/asynchronous_telebot/exception_handler.py
@ -0,0 +1,27 @@
+
+import telebot
+from telebot.async_telebot import AsyncTeleBot
+
+
+import logging
+
+logger = telebot.logger
+telebot.logger.setLevel(logging.DEBUG) # Outputs debug messages to console.
+
+class ExceptionHandler(telebot.ExceptionHandler):
+    def handle(self, exception):
+        logger.error(exception)
+
+bot = AsyncTeleBot('TOKEN',exception_handler=ExceptionHandler())
+
+
+
+
+@bot.message_handler(commands=['photo'])
+async def photo_send(message: telebot.types.Message):
+    await bot.send_message(message.chat.id, 'Hi, this is an example of exception handlers.')
+    raise Exception('test') # Exception goes to ExceptionHandler if it is set
+    
+
+
+bot.polling(skip_pending=True)
--- a/examples/asynchronous_telebot/middleware/flooding_middleware.py
+++ b/examples/asynchronous_telebot/middleware/flooding_middleware.py
@ -0,0 +1,39 @@
+# Just a little example of middleware handlers
+
+import telebot
+from telebot.asyncio_handler_backends import BaseMiddleware
+from telebot.async_telebot import AsyncTeleBot
+from telebot.async_telebot import CancelUpdate
+bot = AsyncTeleBot('TOKEN')
+
+
+class SimpleMiddleware(BaseMiddleware):
+    def __init__(self, limit) -> None:
+        self.last_time = {}
+        self.limit = limit
+        self.update_types = ['message']
+        # Always specify update types, otherwise middlewares won't work
+
+
+    async def pre_process(self, message, data):
+        if not message.from_user.id in self.last_time:
+            # User is not in a dict, so lets add and cancel this function
+            self.last_time[message.from_user.id] = message.date
+            return
+        if message.date - self.last_time[message.from_user.id] < self.limit:
+            # User is flooding
+            await bot.send_message(message.chat.id, 'You are making request too often')
+            return CancelUpdate()
+        self.last_time[message.from_user.id] = message.date
+
+        
+    async def post_process(self, message, data, exception):
+        pass
+
+bot.setup_middleware(SimpleMiddleware(2))
+
+@bot.message_handler(commands=['start'])
+async def start(message):
+    await bot.send_message(message.chat.id, 'Hello!')
+
+bot.polling()
--- a/examples/asynchronous_telebot/middleware/i18n.py
+++ b/examples/asynchronous_telebot/middleware/i18n.py
@ -0,0 +1,48 @@
+#!/usr/bin/python
+
+# This example shows how to implement i18n (internationalization) l10n (localization) to create
+# multi-language bots with middleware handler.
+#
+# Also, you could check language code in handler itself too.
+# But this example just to show the work of middlewares.
+
+import telebot
+from telebot.async_telebot import AsyncTeleBot
+from telebot import asyncio_handler_backends
+import logging
+
+logger = telebot.logger
+telebot.logger.setLevel(logging.DEBUG) # Outputs debug messages to console.
+
+TRANSLATIONS = {
+    'hello': {
+        'en': 'hello',
+        'ru': 'привет',
+        'uz': 'salom'
+    }
+}
+
+
+
+bot = AsyncTeleBot('TOKEN')
+
+
+class LanguageMiddleware(asyncio_handler_backends.BaseMiddleware):
+    def __init__(self):
+        self.update_types = ['message'] # Update types that will be handled by this middleware.
+    async def pre_process(self, message, data):
+        data['response'] = TRANSLATIONS['hello'][message.from_user.language_code]
+    async def post_process(self, message, data, exception):
+        if exception: # You can get exception occured in handler.
+            logger.exception(str(exception))
+
+bot.setup_middleware(LanguageMiddleware()) # do not forget to setup
+
+@bot.message_handler(commands=['start'])
+async def start(message, data: dict):
+    # you can get the data in handler too.
+    # Not necessary to create data parameter in handler function.
+    await bot.send_message(message.chat.id, data['response'])
+
+
+bot.polling()
--- a/examples/asynchronous_telebot/register_handler.py
+++ b/examples/asynchronous_telebot/register_handler.py
@ -0,0 +1,18 @@
+from telebot.async_telebot import AsyncTeleBot
+bot = AsyncTeleBot('TOKEN')
+
+async def start_executor(message):
+    await bot.send_message(message.chat.id, 'Hello!')
+
+bot.register_message_handler(start_executor, commands=['start']) # Start command executor
+
+# See also
+# bot.register_callback_query_handler(*args, **kwargs)
+# bot.register_channel_post_handler(*args, **kwargs)
+# bot.register_chat_member_handler(*args, **kwargs)
+# bot.register_inline_handler(*args, **kwargs)
+# bot.register_my_chat_member_handler(*args, **kwargs)
+# bot.register_edited_message_handler(*args, **kwargs)
+# And other functions..
+
+bot.polling(skip_pending=True)
--- a/examples/asynchronous_telebot/send_file_example.py
+++ b/examples/asynchronous_telebot/send_file_example.py
@ -0,0 +1,27 @@
+
+import telebot
+from telebot.async_telebot import AsyncTeleBot
+
+
+
+bot = AsyncTeleBot('TOKEN')
+
+
+@bot.message_handler(commands=['photo'])
+async def photo_send(message: telebot.types.Message):
+    with open('test.png', 'rb') as new_file:
+        await bot.send_photo(message.chat.id, new_file)
+
+@bot.message_handler(commands=['document'])
+async def document_send(message: telebot.types.Message):
+    with open('test.docx', 'rb') as new_file:
+        await bot.send_document(message.chat.id, new_file)
+
+@bot.message_handler(commands=['photos'])
+async def photos_send(message: telebot.types.Message):
+    with open('test.png', 'rb') as new_file, open('test2.png', 'rb') as new_file2:
+        await bot.send_media_group(message.chat.id, [telebot.types.InputMediaPhoto(new_file), telebot.types.InputMediaPhoto(new_file2)])
+    
+
+
+bot.polling(skip_pending=True)
--- a/examples/asynchronous_telebot/skip_updates_example.py
+++ b/examples/asynchronous_telebot/skip_updates_example.py
@ -0,0 +1,13 @@
+from telebot.async_telebot import AsyncTeleBot
+
+bot = AsyncTeleBot('TOKEN')
+
+@bot.message_handler(commands=['start', 'help'])
+async def send_welcome(message):
+	await bot.reply_to(message, "Howdy, how are you doing?")
+
+@bot.message_handler(func=lambda message: True)
+async def echo_all(message):
+	await bot.reply_to(message, message.text)
+
+bot.polling(skip_pending=True)# Skip pending skips old updates
--- a/examples/asynchronous_telebot/update_listener.py
+++ b/examples/asynchronous_telebot/update_listener.py
@ -0,0 +1,14 @@
+from telebot.async_telebot import AsyncTeleBot
+
+# Update listeners are functions that are called when any update is received.
+
+bot = AsyncTeleBot(token='TOKEN')
+
+async def update_listener(messages):
+    for message in messages:
+        if message.text == '/start':
+            await bot.send_message(message.chat.id, 'Hello!')
+
+bot.set_update_listener(update_listener)
+
+bot.polling()
--- a/examples/chat_join_request.py
+++ b/examples/chat_join_request.py
@ -0,0 +1,11 @@
+import telebot
+
+
+bot = telebot.TeleBot('TOKEN')
+
+@bot.chat_join_request_handler()
+def make_some(message: telebot.types.ChatJoinRequest):
+    bot.send_message(message.chat.id, 'I accepted a new user!')
+    bot.approve_chat_join_request(message.chat.id, message.from_user.id)
+
+bot.infinity_polling(allowed_updates=telebot.util.update_types)
--- a/examples/chat_member_example.py
+++ b/examples/chat_member_example.py
@ -0,0 +1,33 @@
+import telebot
+from telebot import types,util
+
+bot = telebot.TeleBot("token")
+
+#chat_member_handler. When status changes, telegram gives update. check status from old_chat_member and new_chat_member.
+@bot.chat_member_handler()
+def chat_m(message: types.ChatMemberUpdated):
+    old = message.old_chat_member
+    new = message.new_chat_member
+    if new.status == "member":
+        bot.send_message(message.chat.id,"Hello {name}!".format(name=new.user.first_name)) # Welcome message
+
+#if bot is added to group, this handler will work
+@bot.my_chat_member_handler()
+def my_chat_m(message: types.ChatMemberUpdated):
+    old = message.old_chat_member
+    new = message.new_chat_member
+    if new.status == "member":
+        bot.send_message(message.chat.id,"Somebody added me to group") # Welcome message, if bot was added to group
+        bot.leave_chat(message.chat.id)
+
+#content_Type_service is:
+#'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',
+#'proximity_alert_triggered', 'voice_chat_scheduled', 'voice_chat_started', 'voice_chat_ended', 
+#'voice_chat_participants_invited', 'message_auto_delete_timer_changed'
+# this handler deletes service messages
+
+@bot.message_handler(content_types=util.content_type_service)
+def delall(message: types.Message):
+    bot.delete_message(message.chat.id,message.message_id)
+bot.infinity_polling(allowed_updates=util.update_types)
--- a/examples/custom_filters/admin_filter_example.py
+++ b/examples/custom_filters/admin_filter_example.py
@ -0,0 +1,12 @@
+import telebot
+from telebot import custom_filters
+bot = telebot.TeleBot('TOKEN')
+
+# Handler
+@bot.message_handler(chat_types=['supergroup'], is_chat_admin=True)
+def answer_for_admin(message):
+    bot.send_message(message.chat.id,"hello my admin")
+
+# Register filter
+bot.add_custom_filter(custom_filters.IsAdminFilter(bot))
+bot.infinity_polling()
--- a/examples/custom_filters/general_custom_filters.py
+++ b/examples/custom_filters/general_custom_filters.py
@ -0,0 +1,42 @@
+import telebot
+
+bot = telebot.TeleBot('TOKEN')
+
+
+# AdvancedCustomFilter is for list, string filter values
+class MainFilter(telebot.custom_filters.AdvancedCustomFilter):
+    key='text'
+    @staticmethod
+    def check(message, text):
+        return message.text in text
+
+# SimpleCustomFilter is for boolean values, such as is_admin=True
+class IsAdmin(telebot.custom_filters.SimpleCustomFilter):
+    key='is_admin'
+    @staticmethod
+    def check(message: telebot.types.Message):
+        return bot.get_chat_member(message.chat.id,message.from_user.id).status in ['administrator','creator']
+
+
+@bot.message_handler(is_admin=True, commands=['admin']) # Check if user is admin
+def admin_rep(message):
+    bot.send_message(message.chat.id, "Hi admin")
+
+@bot.message_handler(is_admin=False, commands=['admin']) # If user is not admin
+def not_admin(message):
+    bot.send_message(message.chat.id, "You are not admin")
+
+@bot.message_handler(text=['hi']) # Response to hi message
+def welcome_hi(message):
+    bot.send_message(message.chat.id, 'You said hi')
+
+@bot.message_handler(text=['bye']) # Response to bye message
+def bye_user(message):
+    bot.send_message(message.chat.id, 'You said bye')
+
+
+# Do not forget to register filters
+bot.add_custom_filter(MainFilter())
+bot.add_custom_filter(IsAdmin())
+
+bot.infinity_polling(skip_pending=True) # Skip old updates
--- a/examples/custom_filters/id_filter_example.py
+++ b/examples/custom_filters/id_filter_example.py
@ -0,0 +1,19 @@
+import telebot
+from telebot import custom_filters
+
+bot = telebot.TeleBot('token')
+
+
+# Chat id can be private or supergroups.
+@bot.message_handler(chat_id=[12345678], commands=['admin']) # chat_id checks id corresponds to your list or not.
+def admin_rep(message):
+    bot.send_message(message.chat.id, "You are allowed to use this command.")
+
+@bot.message_handler(commands=['admin'])
+def not_admin(message):
+    bot.send_message(message.chat.id, "You are not allowed to use this command")
+
+# Do not forget to register
+bot.add_custom_filter(custom_filters.ChatFilter())
+
+bot.infinity_polling()
--- a/examples/custom_filters/is_filter_example.py
+++ b/examples/custom_filters/is_filter_example.py
@ -0,0 +1,21 @@
+import telebot
+from telebot import custom_filters
+
+bot = telebot.TeleBot('TOKEN')
+
+
+# Check if message is a reply
+@bot.message_handler(is_reply=True)
+def start_filter(message):
+    bot.send_message(message.chat.id, "Looks like you replied to my message.")
+
+# Check if message was forwarded
+@bot.message_handler(is_forwarded=True)
+def text_filter(message):
+    bot.send_message(message.chat.id, "I do not accept forwarded messages!")
+
+# Do not forget to register filters
+bot.add_custom_filter(custom_filters.IsReplyFilter())
+bot.add_custom_filter(custom_filters.ForwardFilter())
+
+bot.infinity_polling()
--- a/examples/custom_filters/text_filter_example.py
+++ b/examples/custom_filters/text_filter_example.py
@ -0,0 +1,21 @@
+import telebot
+from telebot import custom_filters
+
+bot = telebot.TeleBot('TOKEN')
+
+
+# Check if message starts with @admin tag
+@bot.message_handler(text_startswith="@admin")
+def start_filter(message):
+    bot.send_message(message.chat.id, "Looks like you are calling admin, wait...")
+
+# Check if text is hi or hello
+@bot.message_handler(text=['hi','hello'])
+def text_filter(message):
+    bot.send_message(message.chat.id, "Hi, {name}!".format(name=message.from_user.first_name))
+
+# Do not forget to register filters
+bot.add_custom_filter(custom_filters.TextMatchFilter())
+bot.add_custom_filter(custom_filters.TextStartsFilter())
+
+bot.infinity_polling()
--- a/examples/custom_states.py
+++ b/examples/custom_states.py
@ -0,0 +1,74 @@
+import telebot
+
+from telebot import custom_filters
+
+bot = telebot.TeleBot("")
+
+
+class MyStates:
+    name = 1
+    surname = 2
+    age = 3
+
+
+
+@bot.message_handler(commands=['start'])
+def start_ex(message):
+    """
+    Start command. Here we are starting state
+    """
+    bot.set_state(message.from_user.id, MyStates.name)
+    bot.send_message(message.chat.id, 'Hi, write me a name')
+ 
+
+ 
+@bot.message_handler(state="*", commands='cancel')
+def any_state(message):
+    """
+    Cancel state
+    """
+    bot.send_message(message.chat.id, "Your state was cancelled.")
+    bot.delete_state(message.from_user.id)
+
+@bot.message_handler(state=MyStates.name)
+def name_get(message):
+    """
+    State 1. Will process when user's state is 1.
+    """
+    bot.send_message(message.chat.id, f'Now write me a surname')
+    bot.set_state(message.from_user.id, MyStates.surname)
+    with bot.retrieve_data(message.from_user.id) as data:
+        data['name'] = message.text
+ 
+ 
+@bot.message_handler(state=MyStates.surname)
+def ask_age(message):
+    """
+    State 2. Will process when user's state is 2.
+    """
+    bot.send_message(message.chat.id, "What is your age?")
+    bot.set_state(message.from_user.id, MyStates.age)
+    with bot.retrieve_data(message.from_user.id) as data:
+        data['surname'] = message.text
+ 
+# result
+@bot.message_handler(state=MyStates.age, is_digit=True)
+def ready_for_answer(message):
+    with bot.retrieve_data(message.from_user.id) as data:
+        bot.send_message(message.chat.id, "Ready, take a look:\n<b>Name: {name}\nSurname: {surname}\nAge: {age}</b>".format(name=data['name'], surname=data['surname'], age=message.text), parse_mode="html")
+    bot.delete_state(message.from_user.id)
+
+#incorrect number
+@bot.message_handler(state=MyStates.age, is_digit=False)
+def age_incorrect(message):
+    bot.send_message(message.chat.id, 'Looks like you are submitting a string in the field age. Please enter a number')
+
+# register filters
+
+bot.add_custom_filter(custom_filters.StateFilter(bot))
+bot.add_custom_filter(custom_filters.IsDigitFilter())
+
+# set saving states into file.
+bot.enable_saving_states() # you can delete this if you do not need to save states
+
+bot.infinity_polling(skip_pending=True)
--- a/examples/deep_linking.py
+++ b/examples/deep_linking.py
@ -74,4 +74,4 @@ def send_welcome(message):
    bot.reply_to(message, reply)


-bot.polling()
+bot.infinity_polling()
--- a/examples/detailed_example/detailed_example.py
+++ b/examples/detailed_example/detailed_example.py
@ -130,4 +130,4 @@ def command_default(m):
    bot.send_message(m.chat.id, "I don't understand \"" + m.text + "\"\nMaybe try the help page at /help")


-bot.polling()
+bot.infinity_polling()
--- a/examples/echo_bot.py
+++ b/examples/echo_bot.py
@ -25,4 +25,4 @@ def echo_message(message):
    bot.reply_to(message, message.text)


-bot.polling()
+bot.infinity_polling()
--- a/examples/inline_example.py
+++ b/examples/inline_example.py
@ -61,7 +61,7 @@ def default_query(inline_query):


 def main_loop():
-    bot.polling(True)
+    bot.infinity_polling()
    while 1:
        time.sleep(3)

--- a/examples/inline_keyboard_example.py
+++ b/examples/inline_keyboard_example.py
@ -24,4 +24,4 @@ def callback_query(call):
 def message_handler(message):
    bot.send_message(message.chat.id, "Yes/no?", reply_markup=gen_markup())

-bot.polling(none_stop=True)
+bot.infinity_polling()
--- a/examples/middleware/i18n.py
+++ b/examples/middleware/i18n.py
@ -50,4 +50,4 @@ def start(message):
    bot.send_message(message.chat.id, _('hello'))


-bot.polling()
+bot.infinity_polling()
--- a/examples/middleware/session.py
+++ b/examples/middleware/session.py
@ -58,4 +58,4 @@ def start(message):
    bot.send_message(message.chat.id, bot.session['state'])


-bot.polling()
+bot.infinity_polling()
--- a/examples/payments_example.py
+++ b/examples/payments_example.py
@ -78,5 +78,4 @@ def got_payment(message):
                     parse_mode='Markdown')


-bot.skip_pending = True
-bot.polling(none_stop=True, interval=0)
+bot.infinity_polling(skip_pending = True)
--- a/examples/register_handler.py
+++ b/examples/register_handler.py
@ -0,0 +1,21 @@
+import telebot
+
+api_token = 'token'
+
+bot = telebot.TeleBot(api_token)
+
+def start_executor(message):
+    bot.send_message(message.chat.id, 'Hello!')
+
+bot.register_message_handler(start_executor, commands=['start']) # Start command executor
+
+# See also
+# bot.register_callback_query_handler(*args, **kwargs)
+# bot.register_channel_post_handler(*args, **kwargs)
+# bot.register_chat_member_handler(*args, **kwargs)
+# bot.register_inline_handler(*args, **kwargs)
+# bot.register_my_chat_member_handler(*args, **kwargs)
+# bot.register_edited_message_handler(*args, **kwargs)
+# And other functions..
+
+bot.infinity_polling()
--- a/examples/skip_updates_example.py
+++ b/examples/skip_updates_example.py
@ -0,0 +1,13 @@
+import telebot
+
+bot = telebot.TeleBot("TOKEN")
+
+@bot.message_handler(commands=['start', 'help'])
+def send_welcome(message):
+	bot.reply_to(message, "Howdy, how are you doing?")
+
+@bot.message_handler(func=lambda message: True)
+def echo_all(message):
+	bot.reply_to(message, message.text)
+
+bot.infinity_polling(skip_pending=True)# Skip pending skips old updates
--- a/examples/step_example.py
+++ b/examples/step_example.py
@ -68,7 +68,7 @@ def process_sex_step(message):
        if (sex == u'Male') or (sex == u'Female'):
            user.sex = sex
        else:
-            raise Exception()
+            raise Exception("Unknown sex")
        bot.send_message(chat_id, 'Nice to meet you ' + user.name + '\n Age:' + str(user.age) + '\n Sex:' + user.sex)
    except Exception as e:
        bot.reply_to(message, 'oooops')
@ -83,4 +83,4 @@ bot.enable_save_next_step_handlers(delay=2)
 # WARNING It will work only if enable_save_next_step_handlers was called!
 bot.load_next_step_handlers()

-bot.polling()
+bot.infinity_polling()
--- a/examples/telebot_bot/telebot_bot.py
+++ b/examples/telebot_bot/telebot_bot.py
@ -81,4 +81,4 @@ def listener(messages):


 bot.set_update_listener(listener)
-bot.polling()
+bot.infinity_polling()
--- a/examples/webhook_examples/README.md
+++ b/examples/webhook_examples/README.md
@ -1,6 +1,6 @@
 # Webhook examples using pyTelegramBotAPI

-There are 4 examples in this directory using different libraries:
+There are 5 examples in this directory using different libraries:

 * **Python (CPython):** *webhook_cpython_echo_bot.py*
  * **Pros:**
@ -37,9 +37,18 @@ There are 4 examples in this directory using different libraries:
  * **Pros:**
    * It's a web application framework
    * Python 3 compatible
-    * Asynchronous, excellent perfomance
+    * Asynchronous, excellent performance
    * Utilizes new async/await syntax
  * **Cons:**
    * Requires Python 3.4.2+, don't work with Python 2

-*Latest update of this document: 2017-01-30*
+* **Twisted (20.3.0):** *webhook_twisted_echo_bot.py*
+  * **Pros:**
+    * Asynchronous event-driven networking engine
+    * Very high performance
+    * Built-in support for many internet protocols
+  * **Cons:**
+    * Twisted is low-level, which may be good or bad depending on use case
+    * Considerable learning curve - reading docs is a must.
+
+*Latest update of this document: 2020-12-17*
--- a/examples/webhook_examples/webhook_flask_heroku_echo.py
+++ b/examples/webhook_examples/webhook_flask_heroku_echo.py
@ -21,7 +21,9 @@ def echo_message(message):

@server.route('/' + TOKEN, methods=['POST'])
 def getMessage():
-    bot.process_new_updates([telebot.types.Update.de_json(request.stream.read().decode("utf-8"))])
+    json_string = request.get_data().decode('utf-8')
+    update = telebot.types.Update.de_json(json_string)
+    bot.process_new_updates([update])
    return "!", 200


--- a/examples/webhook_examples/webhook_twisted_echo_bot.py
+++ b/examples/webhook_examples/webhook_twisted_echo_bot.py
@ -0,0 +1,79 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+
+# This is an example echo bot using webhook with Twisted network framework.
+# Updates are received with Twisted web server and processed in reactor thread pool.
+# Relevant docs:
+# https://twistedmatrix.com/documents/current/core/howto/reactor-basics.html
+# https://twistedmatrix.com/documents/current/web/howto/using-twistedweb.html
+
+import logging
+import telebot
+import json
+from twisted.internet import ssl, reactor
+from twisted.web.resource import Resource, ErrorPage
+from twisted.web.server import Site, Request
+
+API_TOKEN = '<api_token>'
+
+WEBHOOK_HOST = '<ip or hostname>'
+WEBHOOK_PORT = 8443  # 443, 80, 88 or 8443 (port need to be 'open')
+WEBHOOK_LISTEN = '0.0.0.0'  # In some VPS you may need to put here the IP addr
+
+WEBHOOK_SSL_CERT = './webhook_cert.pem'  # Path to the ssl certificate
+WEBHOOK_SSL_PRIV = './webhook_pkey.pem'  # Path to the ssl private key
+
+# Quick'n'dirty SSL certificate generation:
+#
+# openssl genrsa -out webhook_pkey.pem 2048
+# openssl req -new -x509 -days 3650 -key webhook_pkey.pem -out webhook_cert.pem
+#
+# When asked for "Common Name (e.g. server FQDN or YOUR name)" you should reply
+# with the same value in you put in WEBHOOK_HOST
+
+WEBHOOK_URL_BASE = "https://{}:{}".format(WEBHOOK_HOST, WEBHOOK_PORT)
+WEBHOOK_URL_PATH = "/{}/".format(API_TOKEN)
+
+logger = telebot.logger
+telebot.logger.setLevel(logging.INFO)
+bot = telebot.TeleBot(API_TOKEN)
+
+
+# Handle '/start' and '/help'
+@bot.message_handler(commands=['help', 'start'])
+def send_welcome(message):
+    bot.reply_to(message,
+                 ("Hi there, I am EchoBot.\n"
+                  "I am here to echo your kind words back to you."))
+
+
+# Handle all other messages
+@bot.message_handler(func=lambda message: True, content_types=['text'])
+def echo_message(message):
+    bot.reply_to(message, message.text)
+
+
+# Remove webhook, it fails sometimes the set if there is a previous webhook
+bot.remove_webhook()
+
+# Set webhook
+bot.set_webhook(url=WEBHOOK_URL_BASE + WEBHOOK_URL_PATH,
+                certificate=open(WEBHOOK_SSL_CERT, 'r'))
+
+
+# Process webhook calls
+class WebhookHandler(Resource):
+    isLeaf = True
+    def render_POST(self, request: Request):
+        request_body_dict = json.load(request.content)
+        update = telebot.types.Update.de_json(request_body_dict)
+        reactor.callInThread(lambda: bot.process_new_updates([update]))
+        return b''
+
+
+root = ErrorPage(403, 'Forbidden', '')
+root.putChild(API_TOKEN.encode(), WebhookHandler())
+site = Site(root)
+sslcontext = ssl.DefaultOpenSSLContextFactory(WEBHOOK_SSL_PRIV, WEBHOOK_SSL_CERT)
+reactor.listenSSL(8443, site, sslcontext)
+reactor.run()
--- a/requirements.txt
+++ b/requirements.txt
@ -1,5 +1,4 @@
-py==1.4.29
 pytest==3.0.2
 requests==2.20.0
-six==1.9.0
 wheel==0.24.0
+aiohttp>=3.8.0,<3.9.0
--- a/setup.py
+++ b/setup.py
@ -1,13 +1,18 @@
 #!/usr/bin/env python
 from setuptools import setup
 from io import open
+import re

 def read(filename):
    with open(filename, encoding='utf-8') as file:
        return file.read()

+with open('telebot/version.py', 'r', encoding='utf-8') as f:  # Credits: LonamiWebs
+    version = re.search(r"^__version__\s*=\s*'(.*)'.*$",
+                        f.read(), flags=re.MULTILINE).group(1)
+
 setup(name='pyTelegramBotAPI',
-      version='3.7.2',
+      version=version,
      description='Python Telegram bot api. ',
      long_description=read('README.md'),
      long_description_content_type="text/markdown",
@ -17,9 +22,10 @@ setup(name='pyTelegramBotAPI',
      packages=['telebot'],
      license='GPL2',
      keywords='telegram bot api tools',
-      install_requires=['requests', 'six'],
+      install_requires=['requests'],
      extras_require={
          'json': 'ujson',
+          'PIL': 'Pillow',
          'redis': 'redis>=3.4.1'
      },
      classifiers=[
--- a/telebot/init.py
+++ b/telebot/init.py
--- a/telebot/apihelper.py
+++ b/telebot/apihelper.py
--- a/telebot/async_telebot.py
+++ b/telebot/async_telebot.py
--- a/telebot/asyncio_filters.py
+++ b/telebot/asyncio_filters.py
@ -0,0 +1,178 @@
+from abc import ABC
+
+class SimpleCustomFilter(ABC):
+    """
+    Simple Custom Filter base class.
+    Create child class with check() method.
+    Accepts only message, returns bool value, that is compared with given in handler.
+    """
+
+    async def check(self, message):
+        """
+        Perform a check.
+        """
+        pass
+
+
+class AdvancedCustomFilter(ABC):
+    """
+    Simple Custom Filter base class.
+    Create child class with check() method.
+    Accepts two parameters, returns bool: True - filter passed, False - filter failed.
+    message: Message class
+    text: Filter value given in handler
+    """
+
+    async def check(self, message, text):
+        """
+        Perform a check.
+        """
+        pass
+
+
+class TextMatchFilter(AdvancedCustomFilter):
+    """
+    Filter to check Text message.
+    key: text
+
+    Example:
+    @bot.message_handler(text=['account'])
+    """
+
+    key = 'text'
+
+    async def check(self, message, text):
+        if type(text) is list:return message.text in text
+        else: return text == message.text
+
+class TextContainsFilter(AdvancedCustomFilter):
+    """
+    Filter to check Text message.
+    key: text
+
+    Example:
+    # Will respond if any message.text contains word 'account'
+    @bot.message_handler(text_contains=['account'])
+    """
+
+    key = 'text_contains'
+
+    async def check(self, message, text):
+        return text in message.text
+
+class TextStartsFilter(AdvancedCustomFilter):
+    """
+    Filter to check whether message starts with some text.
+
+    Example:
+    # Will work if message.text starts with 'Sir'.
+    @bot.message_handler(text_startswith='Sir')
+    """
+
+    key = 'text_startswith'
+    async def check(self, message, text):
+        return message.text.startswith(text) 
+
+class ChatFilter(AdvancedCustomFilter):
+    """
+    Check whether chat_id corresponds to given chat_id.
+
+    Example:
+    @bot.message_handler(chat_id=[99999])
+    """
+
+    key = 'chat_id'
+    async def check(self, message, text):
+        return message.chat.id in text
+
+class ForwardFilter(SimpleCustomFilter):
+    """
+    Check whether message was forwarded from channel or group.
+
+    Example:
+
+    @bot.message_handler(is_forwarded=True)
+    """
+
+    key = 'is_forwarded'
+
+    async def check(self, message):
+        return message.forward_from_chat is not None
+
+class IsReplyFilter(SimpleCustomFilter):
+    """
+    Check whether message is a reply.
+
+    Example:
+
+    @bot.message_handler(is_reply=True)
+    """
+
+    key = 'is_reply'
+
+    async def check(self, message):
+        return message.reply_to_message is not None
+
+
+
+class LanguageFilter(AdvancedCustomFilter):
+    """
+    Check users language_code.
+
+    Example:
+
+    @bot.message_handler(language_code=['ru'])
+    """
+
+    key = 'language_code'
+
+    async def check(self, message, text):
+        if type(text) is list:return message.from_user.language_code in text
+        else: return message.from_user.language_code == text
+
+class IsAdminFilter(SimpleCustomFilter):
+    """
+    Check whether the user is administrator / owner of the chat.
+
+    Example:
+    @bot.message_handler(chat_types=['supergroup'], is_chat_admin=True)
+    """
+
+    key = 'is_chat_admin'
+
+    def __init__(self, bot):
+        self._bot = bot
+
+    async def check(self, message):
+        result = await self._bot.get_chat_member(message.chat.id, message.from_user.id)
+        return result.status in ['creator', 'administrator']
+
+class StateFilter(AdvancedCustomFilter):
+    """
+    Filter to check state.
+
+    Example:
+    @bot.message_handler(state=1)
+    """
+    def __init__(self, bot):
+        self.bot = bot
+    key = 'state'
+
+    async def check(self, message, text):
+        result = await self.bot.current_states.current_state(message.from_user.id)
+        if result is False: return False
+        elif text == '*': return True
+        elif type(text) is list: return result in text
+        return result == text
+
+class IsDigitFilter(SimpleCustomFilter):
+    """
+    Filter to check whether the string is made up of only digits.
+
+    Example:
+    @bot.message_handler(is_digit=True)
+    """
+    key = 'is_digit'
+
+    async def check(self, message):
+        return message.text.isdigit()
--- a/telebot/asyncio_handler_backends.py
+++ b/telebot/asyncio_handler_backends.py
@ -0,0 +1,219 @@
+import os
+import pickle
+
+
+
+class StateMemory:
+    def __init__(self):
+        self._states = {}
+
+    async def add_state(self, chat_id, state):
+        """
+        Add a state.
+        :param chat_id:
+        :param state: new state
+        """
+        if chat_id in self._states:
+            
+            self._states[chat_id]['state'] = state
+        else:
+            self._states[chat_id] = {'state': state,'data': {}}
+
+    async def current_state(self, chat_id):
+        """Current state"""
+        if chat_id in self._states: return self._states[chat_id]['state']
+        else: return False
+
+    async def delete_state(self, chat_id):
+        """Delete a state"""
+        self._states.pop(chat_id)
+
+    def _get_data(self, chat_id):
+        return self._states[chat_id]['data']
+
+    async def set(self, chat_id, new_state):
+        """
+        Set a new state for a user.
+        :param chat_id:
+        :param new_state: new_state of a user
+        """
+        await self.add_state(chat_id,new_state)
+
+    async def _add_data(self, chat_id, key, value):
+        result = self._states[chat_id]['data'][key] = value
+        return result
+
+    async def finish(self, chat_id):
+        """
+        Finish(delete) state of a user.
+        :param chat_id:
+        """
+        await self.delete_state(chat_id)
+
+    def retrieve_data(self, chat_id):
+        """
+        Save input text.
+
+        Usage:
+        with bot.retrieve_data(message.chat.id) as data:
+            data['name'] = message.text
+
+        Also, at the end of your 'Form' you can get the name:
+        data['name']
+        """
+        return StateContext(self, chat_id)
+
+
+class StateFile:
+    """
+    Class to save states in a file.
+    """
+    def __init__(self, filename):
+        self.file_path = filename
+
+    async def add_state(self, chat_id, state):
+        """
+        Add a state.
+        :param chat_id:
+        :param state: new state
+        """
+        states_data = self._read_data()
+        if chat_id in states_data:
+            states_data[chat_id]['state'] = state
+            return await self._save_data(states_data)
+        else:
+            new_data = states_data[chat_id] = {'state': state,'data': {}}
+            return await self._save_data(states_data)
+
+
+    async def current_state(self, chat_id):
+        """Current state."""
+        states_data = self._read_data()
+        if chat_id in states_data: return states_data[chat_id]['state']
+        else: return False
+
+    async def delete_state(self, chat_id):
+        """Delete a state"""
+        states_data = self._read_data()
+        states_data.pop(chat_id)
+        await self._save_data(states_data)
+
+    def _read_data(self):
+        """
+        Read the data from file.
+        """
+        file = open(self.file_path, 'rb')
+        states_data = pickle.load(file)
+        file.close()
+        return states_data
+
+    def _create_dir(self):
+        """
+        Create directory .save-handlers.
+        """
+        dirs = self.file_path.rsplit('/', maxsplit=1)[0]
+        os.makedirs(dirs, exist_ok=True)
+        if not os.path.isfile(self.file_path):
+            with open(self.file_path,'wb') as file:
+                pickle.dump({}, file)
+        
+    async def _save_data(self, new_data):
+        """
+        Save data after editing.
+        :param new_data:
+        """
+        with open(self.file_path, 'wb+') as state_file:
+            pickle.dump(new_data, state_file, protocol=pickle.HIGHEST_PROTOCOL)
+        return True
+
+    def _get_data(self, chat_id):
+        return self._read_data()[chat_id]['data']
+
+    async def set(self, chat_id, new_state):
+        """
+        Set a new state for a user.
+        :param chat_id:
+        :param new_state: new_state of a user
+        
+        """
+        await self.add_state(chat_id,new_state)
+
+    async def _add_data(self, chat_id, key, value):
+        states_data = self._read_data()
+        result = states_data[chat_id]['data'][key] = value
+        await self._save_data(result)
+
+        return result
+
+    async def finish(self, chat_id):
+        """
+        Finish(delete) state of a user.
+        :param chat_id:
+        """
+        await self.delete_state(chat_id)
+
+    def retrieve_data(self, chat_id):
+        """
+        Save input text.
+
+        Usage:
+        with bot.retrieve_data(message.chat.id) as data:
+            data['name'] = message.text
+
+        Also, at the end of your 'Form' you can get the name:
+        data['name']
+        """
+        return StateFileContext(self, chat_id)
+
+
+class StateContext:
+    """
+    Class for data.
+    """
+    def __init__(self , obj: StateMemory, chat_id) -> None:
+        self.obj = obj
+        self.chat_id = chat_id
+        self.data = obj._get_data(chat_id)
+
+    async def __aenter__(self):
+        return self.data
+
+    async def __aexit__(self, exc_type, exc_val, exc_tb):
+        return
+
+class StateFileContext:
+    """
+    Class for data.
+    """
+    def __init__(self , obj: StateFile, chat_id) -> None:
+        self.obj = obj
+        self.chat_id = chat_id
+        self.data = None
+
+    async def __aenter__(self):
+        self.data = self.obj._get_data(self.chat_id)
+        return self.data
+
+    async def __aexit__(self, exc_type, exc_val, exc_tb):
+        old_data = self.obj._read_data()
+        for i in self.data:
+            old_data[self.chat_id]['data'][i] = self.data.get(i)
+        await self.obj._save_data(old_data)
+
+        return
+
+
+class BaseMiddleware:
+    """
+    Base class for middleware.
+
+    Your middlewares should be inherited from this class.
+    """
+    def __init__(self):
+        pass
+
+    async def pre_process(self, message, data):
+        raise NotImplementedError
+    async def post_process(self, message, data, exception):
+        raise NotImplementedError
+
--- a/telebot/asyncio_helper.py
+++ b/telebot/asyncio_helper.py
--- a/telebot/callback_data.py
+++ b/telebot/callback_data.py
@ -0,0 +1,115 @@
+import typing
+
+
+class CallbackDataFilter:
+
+    def __init__(self, factory, config: typing.Dict[str, str]):
+        self.config = config
+        self.factory = factory
+
+    def check(self, query):
+        """
+        Checks if query.data appropriates to specified config
+        :param query: telebot.types.CallbackQuery
+        :return: bool
+        """
+
+        try:
+            data = self.factory.parse(query.data)
+        except ValueError:
+            return False
+
+        for key, value in self.config.items():
+            if isinstance(value, (list, tuple, set, frozenset)):
+                if data.get(key) not in value:
+                    return False
+            elif data.get(key) != value:
+                return False
+        return True
+
+
+class CallbackData:
+    """
+    Callback data factory
+    This class will help you to work with CallbackQuery
+    """
+
+    def __init__(self, *parts, prefix: str, sep=':'):
+        if not isinstance(prefix, str):
+            raise TypeError(f'Prefix must be instance of str not {type(prefix).__name__}')
+        if not prefix:
+            raise ValueError("Prefix can't be empty")
+        if sep in prefix:
+            raise ValueError(f"Separator {sep!r} can't be used in prefix")
+
+        self.prefix = prefix
+        self.sep = sep
+
+        self._part_names = parts
+
+    def new(self, *args, **kwargs) -> str:
+        """
+        Generate callback data
+        :param args: positional parameters of CallbackData instance parts
+        :param kwargs: named parameters
+        :return: str
+        """
+        args = list(args)
+
+        data = [self.prefix]
+
+        for part in self._part_names:
+            value = kwargs.pop(part, None)
+            if value is None:
+                if args:
+                    value = args.pop(0)
+                else:
+                    raise ValueError(f'Value for {part!r} was not passed!')
+
+            if value is not None and not isinstance(value, str):
+                value = str(value)
+
+            if self.sep in value:
+                raise ValueError(f"Symbol {self.sep!r} is defined as the separator and can't be used in parts' values")
+
+            data.append(value)
+
+        if args or kwargs:
+            raise TypeError('Too many arguments were passed!')
+
+        callback_data = self.sep.join(data)
+
+        if len(callback_data.encode()) > 64:
+            raise ValueError('Resulted callback data is too long!')
+
+        return callback_data
+
+    def parse(self, callback_data: str) -> typing.Dict[str, str]:
+        """
+        Parse data from the callback data
+        :param callback_data: string, use to telebot.types.CallbackQuery to parse it from string to a dict
+        :return: dict parsed from callback data
+        """
+
+        prefix, *parts = callback_data.split(self.sep)
+        if prefix != self.prefix:
+            raise ValueError("Passed callback data can't be parsed with that prefix.")
+        elif len(parts) != len(self._part_names):
+            raise ValueError('Invalid parts count!')
+
+        result = {'@': prefix}
+        result.update(zip(self._part_names, parts))
+        return result
+
+    def filter(self, **config) -> CallbackDataFilter:
+        """
+        Generate filter
+
+        :param config: specified named parameters will be checked with CallbackQury.data
+        :return: CallbackDataFilter class
+        """
+
+        for key in config.keys():
+            if key not in self._part_names:
+                raise ValueError(f'Invalid field name {key!r}')
+        return CallbackDataFilter(self, config)
--- a/telebot/custom_filters.py
+++ b/telebot/custom_filters.py
@ -0,0 +1,176 @@
+from abc import ABC
+
+class SimpleCustomFilter(ABC):
+    """
+    Simple Custom Filter base class.
+    Create child class with check() method.
+    Accepts only message, returns bool value, that is compared with given in handler.
+    """
+
+    def check(self, message):
+        """
+        Perform a check.
+        """
+        pass
+
+
+class AdvancedCustomFilter(ABC):
+    """
+    Simple Custom Filter base class.
+    Create child class with check() method.
+    Accepts two parameters, returns bool: True - filter passed, False - filter failed.
+    message: Message class
+    text: Filter value given in handler
+    """
+
+    def check(self, message, text):
+        """
+        Perform a check.
+        """
+        pass
+
+
+class TextMatchFilter(AdvancedCustomFilter):
+    """
+    Filter to check Text message.
+    key: text
+
+    Example:
+    @bot.message_handler(text=['account'])
+    """
+
+    key = 'text'
+
+    def check(self, message, text):
+        if type(text) is list:return message.text in text
+        else: return text == message.text
+
+class TextContainsFilter(AdvancedCustomFilter):
+    """
+    Filter to check Text message.
+    key: text
+
+    Example:
+    # Will respond if any message.text contains word 'account'
+    @bot.message_handler(text_contains=['account'])
+    """
+
+    key = 'text_contains'
+
+    def check(self, message, text):
+        return text in message.text
+
+class TextStartsFilter(AdvancedCustomFilter):
+    """
+    Filter to check whether message starts with some text.
+
+    Example:
+    # Will work if message.text starts with 'Sir'.
+    @bot.message_handler(text_startswith='Sir')
+    """
+
+    key = 'text_startswith'
+    def check(self, message, text):
+        return message.text.startswith(text) 
+
+class ChatFilter(AdvancedCustomFilter):
+    """
+    Check whether chat_id corresponds to given chat_id.
+
+    Example:
+    @bot.message_handler(chat_id=[99999])
+    """
+
+    key = 'chat_id'
+    def check(self, message, text):
+        return message.chat.id in text
+
+class ForwardFilter(SimpleCustomFilter):
+    """
+    Check whether message was forwarded from channel or group.
+
+    Example:
+
+    @bot.message_handler(is_forwarded=True)
+    """
+
+    key = 'is_forwarded'
+
+    def check(self, message):
+        return message.forward_from_chat is not None
+
+class IsReplyFilter(SimpleCustomFilter):
+    """
+    Check whether message is a reply.
+
+    Example:
+
+    @bot.message_handler(is_reply=True)
+    """
+
+    key = 'is_reply'
+
+    def check(self, message):
+        return message.reply_to_message is not None
+
+
+
+class LanguageFilter(AdvancedCustomFilter):
+    """
+    Check users language_code.
+
+    Example:
+
+    @bot.message_handler(language_code=['ru'])
+    """
+
+    key = 'language_code'
+
+    def check(self, message, text):
+        if type(text) is list:return message.from_user.language_code in text
+        else: return message.from_user.language_code == text
+
+class IsAdminFilter(SimpleCustomFilter):
+    """
+    Check whether the user is administrator / owner of the chat.
+
+    Example:
+    @bot.message_handler(chat_types=['supergroup'], is_chat_admin=True)
+    """
+
+    key = 'is_chat_admin'
+
+    def __init__(self, bot):
+        self._bot = bot
+
+    def check(self, message):
+        return self._bot.get_chat_member(message.chat.id, message.from_user.id).status in ['creator', 'administrator']
+
+class StateFilter(AdvancedCustomFilter):
+    """
+    Filter to check state.
+
+    Example:
+    @bot.message_handler(state=1)
+    """
+    def __init__(self, bot):
+        self.bot = bot
+    key = 'state'
+
+    def check(self, message, text):
+        if self.bot.current_states.current_state(message.from_user.id) is False: return False
+        elif text == '*': return True
+        elif type(text) is list: return self.bot.current_states.current_state(message.from_user.id) in text
+        return self.bot.current_states.current_state(message.from_user.id) == text
+
+class IsDigitFilter(SimpleCustomFilter):
+    """
+    Filter to check whether the string is made up of only digits.
+
+    Example:
+    @bot.message_handler(is_digit=True)
+    """
+    key = 'is_digit'
+
+    def check(self, message):
+        return message.text.isdigit()
--- a/telebot/handler_backends.py
+++ b/telebot/handler_backends.py
@ -32,10 +32,13 @@ class MemoryHandlerBackend(HandlerBackend):
            self.handlers[handler_group_id] = [handler]

    def clear_handlers(self, handler_group_id):
-        self.handlers.pop(handler_group_id, [])
+        self.handlers.pop(handler_group_id, None)

    def get_handlers(self, handler_group_id):
-        return self.handlers.pop(handler_group_id, [])
+        return self.handlers.pop(handler_group_id, None)
+
+    def load_handlers(self, filename, del_file_after_loading):
+        raise NotImplementedError()


 class FileHandlerBackend(HandlerBackend):
@ -50,19 +53,15 @@ class FileHandlerBackend(HandlerBackend):
            self.handlers[handler_group_id].append(handler)
        else:
            self.handlers[handler_group_id] = [handler]
-
        self.start_save_timer()

    def clear_handlers(self, handler_group_id):
-        self.handlers.pop(handler_group_id, [])
-
+        self.handlers.pop(handler_group_id, None)
        self.start_save_timer()

    def get_handlers(self, handler_group_id):
-        handlers = self.handlers.pop(handler_group_id, [])
-
+        handlers = self.handlers.pop(handler_group_id, None)
        self.start_save_timer()
-
        return handlers

    def start_save_timer(self):
@ -115,11 +114,11 @@ class FileHandlerBackend(HandlerBackend):


 class RedisHandlerBackend(HandlerBackend):
-    def __init__(self, handlers=None, host='localhost', port=6379, db=0, prefix='telebot'):
+    def __init__(self, handlers=None, host='localhost', port=6379, db=0, prefix='telebot', password=None):
        super(RedisHandlerBackend, self).__init__(handlers)
        from redis import Redis
        self.prefix = prefix
-        self.redis = Redis(host, port, db)
+        self.redis = Redis(host, port, db, password)

    def _key(self, handle_group_id):
        return ':'.join((self.prefix, str(handle_group_id)))
@ -136,10 +135,208 @@ class RedisHandlerBackend(HandlerBackend):
        self.redis.delete(self._key(handler_group_id))

    def get_handlers(self, handler_group_id):
-        handlers = []
+        handlers = None
        value = self.redis.get(self._key(handler_group_id))
        if value:
            handlers = pickle.loads(value)
            self.clear_handlers(handler_group_id)
-
        return handlers
+
+
+class StateMemory:
+    def __init__(self):
+        self._states = {}
+
+    def add_state(self, chat_id, state):
+        """
+        Add a state.
+        :param chat_id:
+        :param state: new state
+        """
+        if chat_id in self._states:
+            
+            self._states[chat_id]['state'] = state
+        else:
+            self._states[chat_id] = {'state': state,'data': {}}
+
+    def current_state(self, chat_id):
+        """Current state"""
+        if chat_id in self._states: return self._states[chat_id]['state']
+        else: return False
+
+    def delete_state(self, chat_id):
+        """Delete a state"""
+        self._states.pop(chat_id)
+
+    def _get_data(self, chat_id):
+        return self._states[chat_id]['data']
+
+    def set(self, chat_id, new_state):
+        """
+        Set a new state for a user.
+        :param chat_id:
+        :param new_state: new_state of a user
+        """
+        self.add_state(chat_id,new_state)
+
+    def _add_data(self, chat_id, key, value):
+        result = self._states[chat_id]['data'][key] = value
+        return result
+
+    def finish(self, chat_id):
+        """
+        Finish(delete) state of a user.
+        :param chat_id:
+        """
+        self.delete_state(chat_id)
+
+    def retrieve_data(self, chat_id):
+        """
+        Save input text.
+
+        Usage:
+        with bot.retrieve_data(message.chat.id) as data:
+            data['name'] = message.text
+
+        Also, at the end of your 'Form' you can get the name:
+        data['name']
+        """
+        return StateContext(self, chat_id)
+
+
+class StateFile:
+    """
+    Class to save states in a file.
+    """
+    def __init__(self, filename):
+        self.file_path = filename
+
+    def add_state(self, chat_id, state):
+        """
+        Add a state.
+        :param chat_id:
+        :param state: new state
+        """
+        states_data = self._read_data()
+        if chat_id in states_data:
+            states_data[chat_id]['state'] = state
+            return self._save_data(states_data)
+        else:
+            new_data = states_data[chat_id] = {'state': state,'data': {}}
+            return self._save_data(states_data)
+
+
+    def current_state(self, chat_id):
+        """Current state."""
+        states_data = self._read_data()
+        if chat_id in states_data: return states_data[chat_id]['state']
+        else: return False
+
+    def delete_state(self, chat_id):
+        """Delete a state"""
+        states_data = self._read_data()
+        states_data.pop(chat_id)
+        self._save_data(states_data)
+
+    def _read_data(self):
+        """
+        Read the data from file.
+        """
+        file = open(self.file_path, 'rb')
+        states_data = pickle.load(file)
+        file.close()
+        return states_data
+
+    def _create_dir(self):
+        """
+        Create directory .save-handlers.
+        """
+        dirs = self.file_path.rsplit('/', maxsplit=1)[0]
+        os.makedirs(dirs, exist_ok=True)
+        if not os.path.isfile(self.file_path):
+            with open(self.file_path,'wb') as file:
+                pickle.dump({}, file)
+        
+    def _save_data(self, new_data):
+        """
+        Save data after editing.
+        :param new_data:
+        """
+        with open(self.file_path, 'wb+') as state_file:
+            pickle.dump(new_data, state_file, protocol=pickle.HIGHEST_PROTOCOL)
+        return True
+
+    def _get_data(self, chat_id):
+        return self._read_data()[chat_id]['data']
+
+    def set(self, chat_id, new_state):
+        """
+        Set a new state for a user.
+        :param chat_id:
+        :param new_state: new_state of a user
+        
+        """
+        self.add_state(chat_id,new_state)
+
+    def _add_data(self, chat_id, key, value):
+        states_data = self._read_data()
+        result = states_data[chat_id]['data'][key] = value
+        self._save_data(result)
+
+        return result
+
+    def finish(self, chat_id):
+        """
+        Finish(delete) state of a user.
+        :param chat_id:
+        """
+        self.delete_state(chat_id)
+
+    def retrieve_data(self, chat_id):
+        """
+        Save input text.
+
+        Usage:
+        with bot.retrieve_data(message.chat.id) as data:
+            data['name'] = message.text
+
+        Also, at the end of your 'Form' you can get the name:
+        data['name']
+        """
+        return StateFileContext(self, chat_id)
+
+
+class StateContext:
+    """
+    Class for data.
+    """
+    def __init__(self , obj: StateMemory, chat_id) -> None:
+        self.obj = obj
+        self.chat_id = chat_id
+        self.data = obj._get_data(chat_id)
+
+    def __enter__(self):
+        return self.data
+
+    def __exit__(self, exc_type, exc_val, exc_tb):
+        return
+
+class StateFileContext:
+    """
+    Class for data.
+    """
+    def __init__(self , obj: StateFile, chat_id) -> None:
+        self.obj = obj
+        self.chat_id = chat_id
+        self.data = self.obj._get_data(self.chat_id)
+
+    def __enter__(self):
+        return self.data
+
+    def __exit__(self, exc_type, exc_val, exc_tb):
+        old_data = self.obj._read_data()
+        for i in self.data:
+            old_data[self.chat_id]['data'][i] = self.data.get(i)
+        self.obj._save_data(old_data)
+
+        return
--- a/telebot/types.py
+++ b/telebot/types.py
--- a/telebot/util.py
+++ b/telebot/util.py
@ -2,27 +2,52 @@
 import random
 import re
 import string
-import sys
 import threading
 import traceback
-import warnings
-import functools
+from typing import Any, Callable, List, Dict, Optional, Union

-import six
-from six import string_types
+# noinspection PyPep8Naming
+import queue as Queue
+import logging

-# Python3 queue support.
+from telebot import types

 try:
-    import Queue
+    import ujson as json
 except ImportError:
-    import queue as Queue
-import logging
+    import json
+
+try:
+    # noinspection PyPackageRequirements
+    from PIL import Image
+    from io import BytesIO
+    pil_imported = True
+except:
+    pil_imported = False
+
+MAX_MESSAGE_LENGTH = 4096

 logger = logging.getLogger('TeleBot')

 thread_local = threading.local()

+content_type_media = [
+    'text', 'audio', 'animation', 'document', 'photo', 'sticker', 'video', 'video_note', 'voice', 'contact', 'dice', 'poll',
+    'venue', 'location'
+]
+
+content_type_service = [
+    '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',
+    'proximity_alert_triggered', 'voice_chat_scheduled', 'voice_chat_started', 'voice_chat_ended', 
+    'voice_chat_participants_invited', 'message_auto_delete_timer_changed'
+]
+
+update_types = [
+    "update_id", "message", "edited_message", "channel_post", "edited_channel_post", "inline_query", 
+    "chosen_inline_result", "callback_query", "shipping_query", "pre_checkout_query", "poll", "poll_answer", 
+    "my_chat_member", "chat_member", "chat_join_request"
+]

 class WorkerThread(threading.Thread):
    count = 0
@ -44,7 +69,7 @@ class WorkerThread(threading.Thread):
        self.continue_event = threading.Event()

        self.exception_callback = exception_callback
-        self.exc_info = None
+        self.exception_info = None
        self._running = True
        self.start()

@ -65,12 +90,11 @@ class WorkerThread(threading.Thread):
            except Queue.Empty:
                pass
            except Exception as e:
-                logger.error(type(e).__name__ + " occurred, args=" + str(e.args) + "\n" + traceback.format_exc())
-                self.exc_info = sys.exc_info()
+                logger.debug(type(e).__name__ + " occurred, args=" + str(e.args) + "\n" + traceback.format_exc())
+                self.exception_info = e
                self.exception_event.set()
-
                if self.exception_callback:
-                    self.exception_callback(self, self.exc_info)
+                    self.exception_callback(self, self.exception_info)
                self.continue_event.wait()

    def put(self, task, *args, **kwargs):
@ -78,7 +102,7 @@ class WorkerThread(threading.Thread):

    def raise_exceptions(self):
        if self.exception_event.is_set():
-            six.reraise(self.exc_info[0], self.exc_info[1], self.exc_info[2])
+            raise self.exception_info

    def clear_exceptions(self):
        self.exception_event.clear()
@ -96,19 +120,19 @@ class ThreadPool:
        self.num_threads = num_threads

        self.exception_event = threading.Event()
-        self.exc_info = None
+        self.exception_info = None

    def put(self, func, *args, **kwargs):
        self.tasks.put((func, args, kwargs))

    def on_exception(self, worker_thread, exc_info):
-        self.exc_info = exc_info
+        self.exception_info = exc_info
        self.exception_event.set()
        worker_thread.continue_event.set()

    def raise_exceptions(self):
        if self.exception_event.is_set():
-            six.reraise(self.exc_info[0], self.exc_info[1], self.exc_info[2])
+            raise self.exception_info

    def clear_exceptions(self):
        self.exception_event.clear()
@ -133,19 +157,29 @@ class AsyncTask:
    def _run(self):
        try:
            self.result = self.target(*self.args, **self.kwargs)
-        except:
-            self.result = sys.exc_info()
+        except Exception as e:
+            self.result = e
        self.done = True

    def wait(self):
        if not self.done:
            self.thread.join()
        if isinstance(self.result, BaseException):
-            six.reraise(self.result[0], self.result[1], self.result[2])
+            raise self.result
        else:
            return self.result


+class CustomRequestResponse():
+    def __init__(self, json_text, status_code = 200, reason = ""):
+        self.status_code = status_code
+        self.text = json_text
+        self.reason = reason
+
+    def json(self):
+        return json.loads(self.text)
+
+
 def async_dec():
    def decorator(fn):
        def wrapper(*args, **kwargs):
@ -157,18 +191,43 @@ def async_dec():


 def is_string(var):
-    return isinstance(var, string_types)
+    return isinstance(var, str)

-def is_command(text):
+
+def is_dict(var):
+    return isinstance(var, dict)
+
+
+def is_bytes(var):
+    return isinstance(var, bytes)
+
+
+def is_pil_image(var):
+    return pil_imported and isinstance(var, Image.Image)
+
+
+def pil_image_to_file(image, extension='JPEG', quality='web_low'):
+    if pil_imported:
+        photoBuffer = BytesIO()
+        image.convert('RGB').save(photoBuffer, extension, quality=quality)
+        photoBuffer.seek(0)
+        
+        return photoBuffer
+    else:
+        raise RuntimeError('PIL module is not imported')
+
+
+def is_command(text: str) -> bool:
    """
    Checks if `text` is a command. Telegram chat commands start with the '/' character.
    :param text: Text to check.
    :return: True if `text` is a command, else False.
    """
+    if text is None: return False
    return text.startswith('/')


-def extract_command(text):
+def extract_command(text: str) -> Union[str, None]:
    """
    Extracts the command from `text` (minus the '/') if `text` is a command (see is_command).
    If `text` is not a command, this function returns None.
@ -182,10 +241,28 @@ def extract_command(text):
    :param text: String to extract the command from
    :return: the command if `text` is a command (according to is_command), else None.
    """
+    if text is None: return None
    return text.split()[0].split('@')[0][1:] if is_command(text) else None


-def split_string(text, chars_per_string):
+def extract_arguments(text: str) -> str:
+    """
+    Returns the argument after the command.
+    
+    Examples:
+    extract_arguments("/get name"): 'name'
+    extract_arguments("/get"): ''
+    extract_arguments("/get@botName name"): 'name'
+    
+    :param text: String to extract the arguments from a command
+    :return: the arguments if `text` is a command (according to is_command), else None.
+    """
+    regexp = re.compile(r"/\w*(@\w*)*\s*([\s\S]*)", re.IGNORECASE)
+    result = regexp.match(text)
+    return result.group(2) if is_command(text) else None
+
+
+def split_string(text: str, chars_per_string: int) -> List[str]:
    """
    Splits one string into multiple strings, with a maximum amount of `chars_per_string` characters per string.
    This is very useful for splitting one giant message into multiples.
@ -196,6 +273,107 @@ def split_string(text, chars_per_string):
    """
    return [text[i:i + chars_per_string] for i in range(0, len(text), chars_per_string)]

+
+def smart_split(text: str, chars_per_string: int=MAX_MESSAGE_LENGTH) -> List[str]:
+    """
+    Splits one string into multiple strings, with a maximum amount of `chars_per_string` characters per string.
+    This is very useful for splitting one giant message into multiples.
+    If `chars_per_string` > 4096: `chars_per_string` = 4096.
+    Splits by '\n', '. ' or ' ' in exactly this priority.
+
+    :param text: The text to split
+    :param chars_per_string: The number of maximum characters per part the text is split to.
+    :return: The splitted text as a list of strings.
+    """
+
+    def _text_before_last(substr: str) -> str:
+        return substr.join(part.split(substr)[:-1]) + substr
+
+    if chars_per_string > MAX_MESSAGE_LENGTH: chars_per_string = MAX_MESSAGE_LENGTH
+
+    parts = []
+    while True:
+        if len(text) < chars_per_string:
+            parts.append(text)
+            return parts
+
+        part = text[:chars_per_string]
+
+        if "\n" in part: part = _text_before_last("\n")
+        elif ". " in part: part = _text_before_last(". ")
+        elif " " in part: part = _text_before_last(" ")
+
+        parts.append(part)
+        text = text[len(part):]
+
+
+def escape(text: str) -> str:
+    """
+    Replaces the following chars in `text` ('&' with '&amp;', '<' with '&lt;' and '>' with '&gt;').
+
+    :param text: the text to escape
+    :return: the escaped text
+    """
+    chars = {"&": "&amp;", "<": "&lt;", ">": "&gt"}
+    for old, new in chars.items(): text = text.replace(old, new)
+    return text
+
+
+def user_link(user: types.User, include_id: bool=False) -> str:
+    """
+    Returns an HTML user link. This is useful for reports.
+    Attention: Don't forget to set parse_mode to 'HTML'!
+
+    Example:
+    bot.send_message(your_user_id, user_link(message.from_user) + ' started the bot!', parse_mode='HTML')
+
+    :param user: the user (not the user_id)
+    :param include_id: include the user_id
+    :return: HTML user link
+    """
+    name = escape(user.first_name)
+    return (f"<a href='tg://user?id={user.id}'>{name}</a>" 
+        + (f" (<pre>{user.id}</pre>)" if include_id else ""))
+
+
+def quick_markup(values: Dict[str, Dict[str, Any]], row_width: int=2) -> types.InlineKeyboardMarkup:
+    """
+    Returns a reply markup from a dict in this format: {'text': kwargs}
+    This is useful to avoid always typing 'btn1 = InlineKeyboardButton(...)' 'btn2 = InlineKeyboardButton(...)' 
+    
+    Example:
+    quick_markup({
+        'Twitter': {'url': 'https://twitter.com'},
+        'Facebook': {'url': 'https://facebook.com'},
+        'Back': {'callback_data': 'whatever'}
+    }, row_width=2): 
+        returns an InlineKeyboardMarkup with two buttons in a row, one leading to Twitter, the other to facebook
+        and a back button below
+
+    kwargs can be: 
+    {
+        'url': None, 
+        'callback_data': None, 
+        'switch_inline_query': None,
+        'switch_inline_query_current_chat': None,
+        'callback_game': None,
+        'pay': None,
+        'login_url': None
+    }
+    
+    :param values: a dict containing all buttons to create in this format: {text: kwargs} {str:}
+    :param row_width: int row width
+    :return: InlineKeyboardMarkup
+    """
+    markup = types.InlineKeyboardMarkup(row_width=row_width)
+    buttons = [
+        types.InlineKeyboardButton(text=text, **kwargs)
+        for text, kwargs in values.items()
+    ]
+    markup.add(*buttons)
+    return markup
+
+
 # CREDITS TO http://stackoverflow.com/questions/12317940#answer-12320352
 def or_set(self):
    self._set()
@ -208,16 +386,20 @@ def or_clear(self):


 def orify(e, changed_callback):
-    e._set = e.set
-    e._clear = e.clear
+    if not hasattr(e, "_set"):
+        e._set = e.set
+    if not hasattr(e, "_clear"):
+        e._clear = e.clear
    e.changed = changed_callback
    e.set = lambda: or_set(e)
    e.clear = lambda: or_clear(e)

+
 def OrEvent(*events):
    or_event = threading.Event()
+
    def changed():
-        bools = [e.is_set() for e in events]
+        bools = [ev.is_set() for ev in events]
        if any(bools):
            or_event.set()
        else:
@ -234,22 +416,6 @@ def OrEvent(*events):
    changed()
    return or_event

-def extract_arguments(text):
-    """
-    Returns the argument after the command.
-    
-    Examples:
-    extract_arguments("/get name"): 'name'
-    extract_arguments("/get"): ''
-    extract_arguments("/get@botName name"): 'name'
-    
-    :param text: String to extract the arguments from a command
-    :return: the arguments if `text` is a command (according to is_command), else None.
-    """
-    regexp = re.compile(r"/\w*(@\w*)*\s*([\s\S]*)",re.IGNORECASE)
-    result = regexp.match(text)
-    return result.group(2) if is_command(text) else None
-

 def per_thread(key, construct_value, reset=False):
    if reset or not hasattr(thread_local, key):
@ -259,21 +425,70 @@ def per_thread(key, construct_value, reset=False):
    return getattr(thread_local, key)


+def chunks(lst, n):
+    """Yield successive n-sized chunks from lst."""
+    # https://stackoverflow.com/a/312464/9935473
+    for i in range(0, len(lst), n):
+        yield lst[i:i + n]
+
+
 def generate_random_token():
    return ''.join(random.sample(string.ascii_letters, 16))


-def deprecated(func):
-    """This is a decorator which can be used to mark functions
-    as deprecated. It will result in a warning being emitted
-    when the function is used."""
-    # https://stackoverflow.com/a/30253848/441814
-    @functools.wraps(func)
-    def new_func(*args, **kwargs):
-        warnings.simplefilter('always', DeprecationWarning)  # turn off filter
-        warnings.warn("Call to deprecated function {}.".format(func.__name__),
-                      category=DeprecationWarning,
-                      stacklevel=2)
-        warnings.simplefilter('default', DeprecationWarning)  # reset filter
-        return func(*args, **kwargs)
-    return new_func
+def deprecated(warn: bool=False, alternative: Optional[Callable]=None):
+    """
+    Use this decorator to mark functions as deprecated.
+    When the function is used, an info (or warning if `warn` is True) is logged.
+    :param warn: If True a warning is logged else an info
+    :param alternative: The new function to use instead
+    """
+    def decorator(function):
+        def wrapper(*args, **kwargs):
+            if not warn:
+                logger.info(f"`{function.__name__}` is deprecated." 
+                    + (f" Use `{alternative.__name__}` instead" if alternative else ""))
+            else:
+                logger.warn(f"`{function.__name__}` is deprecated." 
+                    + (f" Use `{alternative.__name__}` instead" if alternative else ""))
+            return function(*args, **kwargs)
+        return wrapper
+    return decorator
+
+
+# Cloud helpers
+def webhook_google_functions(bot, request):
+    """A webhook endpoint for Google Cloud Functions FaaS."""
+    if request.is_json:
+        try:
+            request_json = request.get_json()
+            update = types.Update.de_json(request_json)
+            bot.process_new_updates([update])
+            return ''
+        except Exception as e:
+            print(e)
+            return 'Bot FAIL', 400
+    else:
+        return 'Bot ON'
+
+def antiflood(function, *args, **kwargs):
+    """
+    Use this function inside loops in order to avoid getting TooManyRequests error.
+    Example:
+
+    from telebot.util import antiflood
+    for chat_id in chat_id_list:
+        msg = antiflood(bot.send_message, chat_id, text)
+        
+    You want get the
+    """
+    from telebot.apihelper import ApiTelegramException
+    from time import sleep
+    try:
+        msg = function(*args, **kwargs)
+    except ApiTelegramException as ex:
+        if ex.error_code == 429:
+            sleep(ex.result_json['parameters']['retry_after'])
+            msg = function(*args, **kwargs)
+    finally:
+        return msg
--- a/telebot/version.py
+++ b/telebot/version.py
@ -0,0 +1,3 @@
+# Versions should comply with PEP440.
+# This line is parsed in setup.py:
+__version__ = '4.2.2'
--- a/tests/test_handler_backends.py
+++ b/tests/test_handler_backends.py
@ -62,8 +62,12 @@ def update_type(message):
    pre_checkout_query = None
    poll = None
    poll_answer = None
+    my_chat_member = None
+    chat_member = None
+    chat_join_request = None
    return types.Update(1001234038283, message, edited_message, channel_post, edited_channel_post, inline_query,
-                        chosen_inline_result, callback_query, shipping_query, pre_checkout_query, poll, poll_answer)
+                        chosen_inline_result, callback_query, shipping_query, pre_checkout_query, poll, poll_answer,
+                        my_chat_member, chat_member, chat_join_request)


@pytest.fixture()
@ -78,9 +82,12 @@ def reply_to_message_update_type(reply_to_message):
    pre_checkout_query = None
    poll = None
    poll_answer = None
+    my_chat_member = None
+    chat_member = None
+    chat_join_request = None
    return types.Update(1001234038284, reply_to_message, edited_message, channel_post, edited_channel_post,
-                        inline_query,
-                        chosen_inline_result, callback_query, shipping_query, pre_checkout_query, poll, poll_answer)
+                        inline_query, chosen_inline_result, callback_query, shipping_query, pre_checkout_query, 
+                        poll, poll_answer, my_chat_member, chat_member, chat_join_request)


 def next_handler(message):
--- a/tests/test_telebot.py
+++ b/tests/test_telebot.py
@ -6,6 +6,7 @@ sys.path.append('../')
 import time
 import pytest
 import os
+from datetime import datetime, timedelta

 import telebot
 from telebot import types
@ -18,6 +19,14 @@ if not should_skip:
    CHAT_ID = os.environ['CHAT_ID']
    GROUP_ID = os.environ['GROUP_ID']

+def _new_test():
+    pass
+
+@util.deprecated(alternative=_new_test)
+def _test():
+    pass
+        
+

@pytest.mark.skipif(should_skip, reason="No environment variables configured")
 class TestTeleBot:
@ -48,6 +57,7 @@ class TestTeleBot:
        bot = telebot.TeleBot('')
        msg = self.create_text_message(r'https://web.telegram.org/')

+        # noinspection PyUnusedLocal
        @bot.message_handler(regexp=r'((https?):((//)|(\\\\))+([\w\d:#@%/;$()~_?\+-=\\\.&](#!)?)*)')
        def command_url(message):
            msg.text = 'got'
@ -60,6 +70,7 @@ class TestTeleBot:
        bot = telebot.TeleBot('')
        msg = self.create_text_message(r'lambda_text')

+        # noinspection PyUnusedLocal
        @bot.message_handler(func=lambda message: r'lambda' in message.text)
        def command_url(message):
            msg.text = 'got'
@ -72,6 +83,7 @@ class TestTeleBot:
        bot = telebot.TeleBot('')
        msg = self.create_text_message(r'text')

+        # noinspection PyUnusedLocal
        @bot.message_handler(func=lambda message: r'lambda' in message.text)
        def command_url(message):
            msg.text = 'got'
@ -84,6 +96,7 @@ class TestTeleBot:
        bot = telebot.TeleBot('')
        msg = self.create_text_message(r'web.telegram.org/')

+        # noinspection PyUnusedLocal
        @bot.message_handler(regexp=r'((https?):((//)|(\\\\))+([\w\d:#@%/;$()~_?\+-=\\\.&](#!)?)*)')
        def command_url(message):
            msg.text = 'got'
@ -121,6 +134,16 @@ class TestTeleBot:
        ret_msg = tb.send_document(CHAT_ID, ret_msg.document.file_id)
        assert ret_msg.message_id

+    def test_send_file_with_filename(self):
+        file_data = open('../examples/detailed_example/kitten.jpg', 'rb')
+        tb = telebot.TeleBot(TOKEN)
+
+        ret_msg = tb.send_document(CHAT_ID, file_data)
+        assert ret_msg.message_id
+
+        ret_msg = tb.send_document(CHAT_ID, file_data, visible_file_name="test.jpg")
+        assert ret_msg.message_id
+        
    def test_send_file_dis_noti(self):
        file_data = open('../examples/detailed_example/kitten.jpg', 'rb')
        tb = telebot.TeleBot(TOKEN)
@ -289,6 +312,13 @@ class TestTeleBot:
        ret_msg = tb.forward_message(CHAT_ID, CHAT_ID, msg.message_id)
        assert ret_msg.forward_from

+    def test_copy_message(self):
+        text = 'CI copy_message Test Message'
+        tb = telebot.TeleBot(TOKEN)
+        msg = tb.send_message(CHAT_ID, text)
+        ret_msg = tb.copy_message(CHAT_ID, CHAT_ID, msg.message_id)
+        assert ret_msg
+
    def test_forward_message_dis_noti(self):
        text = 'CI forward_message Test Message'
        tb = telebot.TeleBot(TOKEN)
@ -396,6 +426,23 @@ class TestTeleBot:
        cn = tb.get_chat_members_count(GROUP_ID)
        assert cn > 1

+    def test_export_chat_invite_link(self):
+        tb = telebot.TeleBot(TOKEN)
+        il = tb.export_chat_invite_link(GROUP_ID)
+        assert isinstance(il, str)
+
+    def test_create_revoke_detailed_chat_invite_link(self):
+        tb = telebot.TeleBot(TOKEN)
+        cil = tb.create_chat_invite_link(GROUP_ID, 
+            (datetime.now() + timedelta(minutes=1)).timestamp(), member_limit=5)
+        assert isinstance(cil.invite_link, str)
+        assert cil.creator.id == tb.get_me().id
+        assert isinstance(cil.expire_date, (float, int))
+        assert cil.member_limit == 5
+        assert not cil.is_revoked
+        rcil = tb.revoke_chat_invite_link(GROUP_ID, cil.invite_link)
+        assert rcil.is_revoked
+
    def test_edit_markup(self):
        text = 'CI Test Message'
        tb = telebot.TeleBot(TOKEN)
@ -408,6 +455,13 @@ class TestTeleBot:
        new_msg = tb.edit_message_reply_markup(chat_id=CHAT_ID, message_id=ret_msg.message_id, reply_markup=markup)
        assert new_msg.message_id

+    def test_antiflood(self):
+        text = "Flooding"
+        tb = telebot.TeleBot(TOKEN)
+        for _ in range(0,100):
+            util.antiflood(tb.send_message, CHAT_ID, text)
+        assert _
+
    @staticmethod
    def create_text_message(text):
        params = {'text': text}
@ -429,8 +483,12 @@ class TestTeleBot:
        pre_checkout_query = None
        poll = None
        poll_answer = None
+        my_chat_member = None
+        chat_member = None
+        chat_join_request = None
        return types.Update(-1001234038283, message, edited_message, channel_post, edited_channel_post, inline_query,
-                            chosen_inline_result, callback_query, shipping_query, pre_checkout_query, poll, poll_answer)
+                            chosen_inline_result, callback_query, shipping_query, pre_checkout_query, poll, poll_answer,
+                            my_chat_member, chat_member, chat_join_request)

    def test_is_string_unicode(self):
        s1 = u'string'
@ -514,6 +572,24 @@ class TestTeleBot:
        ret_msg = tb.send_document(CHAT_ID, file_data, caption='_italic_', parse_mode='Markdown')
        assert ret_msg.caption_entities[0].type == 'italic'

+    def test_chat_commands(self):
+        tb = telebot.TeleBot(TOKEN)
+        command, description, lang = 'command_1', 'description of command 1', 'en'
+        scope = telebot.types.BotCommandScopeChat(CHAT_ID)
+        ret_msg = tb.set_my_commands([telebot.types.BotCommand(command, description)], scope, lang)
+        assert ret_msg is True
+
+        ret_msg = tb.get_my_commands(scope, lang)
+        assert ret_msg[0].command == command
+        assert ret_msg[0].description == description
+
+        ret_msg = tb.delete_my_commands(scope, lang)
+        assert ret_msg is True
+
+        ret_msg = tb.get_my_commands(scope, lang)
+        assert ret_msg == []
+
+
    def test_typed_middleware_handler(self):
        from telebot import apihelper

@ -522,6 +598,7 @@ class TestTeleBot:
        tb = telebot.TeleBot('')
        update = self.create_message_update('/help')

+        # noinspection PyUnusedLocal
        @tb.middleware_handler(update_types=['message'])
        def middleware(tb_instance, message):
            message.text = 'got'
@ -542,9 +619,10 @@ class TestTeleBot:
        tb = telebot.TeleBot('')
        update = self.create_message_update('/help')

+        # noinspection PyUnusedLocal
        @tb.middleware_handler()
-        def middleware(tb_instance, update):
-            update.message.text = 'got'
+        def middleware(tb_instance, mw_update):
+            mw_update.message.text = 'got'

        @tb.message_handler(func=lambda m: m.text == 'got')
        def command_handler(message):
@ -553,9 +631,12 @@ class TestTeleBot:
        tb.process_new_updates([update])
        time.sleep(1)
        assert update.message.text == 'got' * 2
+    
+    def test_deprecated_dec(self):
+        _test()

    def test_chat_permissions(self):
        return # CHAT_ID is private chat, no permissions can be set
-        tb = telebot.TeleBot(TOKEN)
-        permissions = types.ChatPermissions(can_send_messages=True, can_send_polls=False)
-        msg = tb.set_chat_permissions(CHAT_ID, permissions)
+        #tb = telebot.TeleBot(TOKEN)
+        #permissions = types.ChatPermissions(can_send_messages=True, can_send_polls=False)
+        #msg = tb.set_chat_permissions(CHAT_ID, permissions)
--- a/tests/test_types.py
+++ b/tests/test_types.py
@ -6,9 +6,10 @@ from telebot import types


 def test_json_user():
-    jsonstring = r'{"id":101176298,"first_name":"RDSSBOT","username":"rdss_bot","is_bot":true}'
+    jsonstring = r'{"id":101176298,"first_name":"RDSSBOT","last_name":")))","username":"rdss_bot","is_bot":true}'
    u = types.User.de_json(jsonstring)
    assert u.id == 101176298
+    assert u.full_name == 'RDSSBOT )))'


 def test_json_message():
@ -17,6 +18,28 @@ def test_json_message():
    assert msg.text == 'HIHI'


+def test_json_message_with_reply_markup():
+    jsonstring = r'{"message_id":48,"from":{"id":153587469,"is_bot":false,"first_name":"Neko","username":"Neko"},"chat":{"id":153587469,"first_name":"Neko","username":"Neko","type":"private"},"date":1598879570,"text":"test","reply_markup":{"inline_keyboard":[[{"text":"Google","url":"http://www.google.com"},{"text":"Yahoo","url":"http://www.yahoo.com"}]]}}'
+    msg = types.Message.de_json(jsonstring)
+    assert msg.content_type == 'text'
+    assert msg.reply_markup.keyboard[0][0].text == 'Google'
+
+
+def test_json_InlineKeyboardMarkup():
+    jsonstring = r'{"inline_keyboard":[[{"text":"Google","url":"http://www.google.com"},{"text":"Yahoo","url":"http://www.yahoo.com"}]]}'
+    markup = types.InlineKeyboardMarkup.de_json(jsonstring)
+    assert markup.keyboard[0][0].text == 'Google'
+    assert markup.keyboard[0][1].url == 'http://www.yahoo.com'
+
+
+def test_json_InlineKeyboardButton():
+    jsonstring = r'{"text":"Google","url":"http://www.google.com"}'
+    button = types.InlineKeyboardButton.de_json(jsonstring)
+    assert button.text == 'Google'
+    assert button.url == 'http://www.google.com'
+
+
+
 def test_json_message_with_dice():
    jsonstring = r'{"message_id":5560,"from":{"id":879343317,"is_bot":false,"first_name":"George","last_name":"Forse","username":"dr_fxrse","language_code":"ru"},"chat":{"id":879343317,"first_name":"George","last_name":"Forse","username":"dr_fxrse","type":"private"},"date":1586926330,"dice":{"value": 4, "emoji": "\ud83c\udfaf"}}'
    msg = types.Message.de_json(jsonstring)
@ -27,7 +50,7 @@ def test_json_message_with_dice():


 def test_json_message_group():
-    json_string = r'{"message_id":10,"from":{"id":12345,"first_name":"g","last_name":"G","username":"GG","is_bot":true},"chat":{"id":-866,"type":"private","title":"\u4ea4"},"date":1435303157,"text":"HIHI"}'
+    json_string = r'{"message_id":10,"from":{"id":12345,"first_name":"g","last_name":"G","username":"GG","is_bot":true},"chat":{"id":-866,"type":"private","title":"\u4ea4"},"date":1435303157,"text":"HIHI","has_protected_content":true}'
    msg = types.Message.de_json(json_string)
    assert msg.text == 'HIHI'
    assert len(msg.chat.title) != 0
@ -41,14 +64,14 @@ def test_json_GroupChat():


 def test_json_Document():
-    json_string = r'{"file_name":"Text File","thumb":{},"file_id":"BQADBQADMwIAAsYifgZ_CEh0u682xwI","file_size":446}'
+    json_string = r'{"file_name":"Text File","thumb":{},"file_id":"BQADBQADMwIAAsYifgZ_CEh0u682xwI","file_unique_id": "AgADJQEAAqfhOEY","file_size":446}'
    doc = types.Document.de_json(json_string)
    assert doc.thumb is None
    assert doc.file_name == 'Text File'


 def test_json_Message_Audio():
-    json_string = r'{"message_id":131,"from":{"id":12775,"first_name":"dd","username":"dd","is_bot":true },"chat":{"id":10834,"first_name":"dd","type":"private","type":"private","last_name":"dd","username":"dd"},"date":1439978364,"audio":{"duration":1,"mime_type":"audio\/mpeg","title":"pyTelegram","performer":"eternnoir","file_id":"BQADBQADDH1JaB8-1KyWUss2-Ag","file_size":20096}}'
+    json_string = r'{"message_id":131,"from":{"id":12775,"first_name":"dd","username":"dd","is_bot":true },"chat":{"id":10834,"first_name":"dd","type":"private","type":"private","last_name":"dd","username":"dd"},"date":1439978364,"audio":{"duration":1,"mime_type":"audio\/mpeg","title":"pyTelegram","performer":"eternnoir","file_id":"BQADBQADDH1JaB8-1KyWUss2-Ag","file_unique_id": "AgADawEAAn8VSFY","file_size":20096}}'
    msg = types.Message.de_json(json_string)
    assert msg.audio.duration == 1
    assert msg.content_type == 'audio'
@ -73,21 +96,21 @@ def test_json_Message_Sticker_without_thumb():


 def test_json_Message_Document():
-    json_string = r'{"message_id":97,"from":{"id":10734,"first_name":"Fd","last_name":"Wd","username":"dd","is_bot":true },"chat":{"id":10,"first_name":"Fd","type":"private","last_name":"Wd","username":"dd"},"date":1435478744,"document":{"file_name":"Text File","thumb":{},"file_id":"BQADBQADMwIAAsYifgZ_CEh0u682xwI","file_size":446}}'
+    json_string = r'{"message_id":97,"from":{"id":10734,"first_name":"Fd","last_name":"Wd","username":"dd","is_bot":true },"chat":{"id":10,"first_name":"Fd","type":"private","last_name":"Wd","username":"dd"},"date":1435478744,"document":{"file_name":"Text File","thumb":{},"file_id":"BQADBQADMwIAAsYifgZ_CEh0u682xwI","file_unique_id": "AQAD_QIfa3QAAyA4BgAB","file_size":446}}'
    msg = types.Message.de_json(json_string)
    assert msg.document.file_name == 'Text File'
    assert msg.content_type == 'document'


 def test_json_Message_Photo():
-    json_string = r'{"message_id":96,"from":{"id":109734,"first_name":"Fd","last_name":"Wd","username":"dd","is_bot":true },"chat":{"id":10734,"first_name":"Fd","type":"private","last_name":"dd","username":"dd"},"date":1435478191,"photo":[{"file_id":"AgADBQADIagxG8YifgYv8yLSj76i-dd","file_size":615,"width":90,"height":67},{"file_id":"AgADBQADIagxG8YifgYv8yLSj76i-dd","file_size":10174,"width":320,"height":240},{"file_id":"dd-A_LsTIABFNx-FUOaEa_3AABAQABAg","file_size":53013,"width":759,"height":570}]}'
+    json_string = r'{"message_id":96,"from":{"id":109734,"first_name":"Fd","last_name":"Wd","username":"dd","is_bot":true },"chat":{"id":10734,"first_name":"Fd","type":"private","last_name":"dd","username":"dd"},"date":1435478191,"photo":[{"file_id":"AgADBQADIagxG8YifgYv8yLSj76i-dd","file_unique_id": "AQAD_QIfa3QAAyA4BgAB","file_size":615,"width":90,"height":67},{"file_id":"AgADBQADIagxG8YifgYv8yLSj76i-dd","file_unique_id": "AQAD_QIfa3QAAyA4BgAB","file_size":10174,"width":320,"height":240},{"file_id":"dd-A_LsTIABFNx-FUOaEa_3AABAQABAg","file_unique_id": "AQAD_QIfa3QAAyA4BgAB","file_size":53013,"width":759,"height":570}]}'
    msg = types.Message.de_json(json_string)
    assert len(msg.photo) == 3
    assert msg.content_type == 'photo'


 def test_json_Message_Video():
-    json_string = r'{"message_id":101,"from":{"id":109734,"first_name":"dd","last_name":"dd","username":"dd","is_bot":true },"chat":{"id":109734,"first_name":"dd","type":"private","last_name":"dd","username":"dd"},"date":1435481960,"video":{"duration":3,"caption":"","width":360,"height":640,"thumb":{"file_id":"AAQFABPiYnBjkDwMAAIC","file_size":1597,"width":50,"height":90},"file_id":"BAADBQADNifgb_TOPEKErGoQI","file_size":260699}}'
+    json_string = r'{"message_id":101,"from":{"id":109734,"first_name":"dd","last_name":"dd","username":"dd","is_bot":true },"chat":{"id":109734,"first_name":"dd","type":"private","last_name":"dd","username":"dd"},"date":1435481960,"video":{"duration":3,"caption":"","width":360,"height":640,"thumb":{"file_id":"AAQFABPiYnBjkDwMAAIC","file_unique_id": "AQADTeisa3QAAz1nAAI","file_size":1597,"width":50,"height":90},"file_id":"BAADBQADNifgb_TOPEKErGoQI","file_unique_id": "AgADbgEAAn8VSFY","file_size":260699}}'
    msg = types.Message.de_json(json_string)
    assert msg.video
    assert msg.video.duration == 3
@ -103,21 +126,21 @@ def test_json_Message_Location():


 def test_json_UserProfilePhotos():
-    json_string = r'{"total_count":1,"photos":[[{"file_id":"AgADAgADqacxG6wpRwABvEB6fpeIcKS4HAIkAATZH_SpyZjzIwdVAAIC","file_size":6150,"width":160,"height":160},{"file_id":"AgADAgADqacxG6wpRwABvEB6fpeIcKS4HAIkAATOiTNi_YoJMghVAAIC","file_size":13363,"width":320,"height":320},{"file_id":"AgADAgADqacxG6wpRwABvEB6fpeIcKS4HAIkAAQW4DyFv0-lhglVAAIC","file_size":28347,"width":640,"height":640},{"file_id":"AgADAgADqacxG6wpRwABvEB6fpeIcKS4HAIkAAT50RvJCg0GQApVAAIC","file_size":33953,"width":800,"height":800}]]}'
+    json_string = r'{"total_count":1,"photos":[[{"file_id":"AgADAgADqacxG6wpRwABvEB6fpeIcKS4HAIkAATZH_SpyZjzIwdVAAIC","file_unique_id": "AQAD_QIfa3QAAyA4BgAB","file_size":6150,"width":160,"height":160},{"file_id":"AgADAgADqacxG6wpRwABvEB6fpeIcKS4HAIkAATOiTNi_YoJMghVAAIC","file_unique_id": "AQAD_QIfa3QAAyA4BgAB","file_size":13363,"width":320,"height":320},{"file_id":"AgADAgADqacxG6wpRwABvEB6fpeIcKS4HAIkAAQW4DyFv0-lhglVAAIC","file_unique_id": "AQAD_QIfa3QAAyA4BgAB","file_size":28347,"width":640,"height":640},{"file_id":"AgADAgADqacxG6wpRwABvEB6fpeIcKS4HAIkAAT50RvJCg0GQApVAAIC","file_unique_id": "AQAD_QIfa3QAAyA4BgAB","file_size":33953,"width":800,"height":800}]]}'
    upp = types.UserProfilePhotos.de_json(json_string)
    assert upp.photos[0][0].width == 160
    assert upp.photos[0][-1].height == 800


 def test_json_contact():
-    json_string = r'{"phone_number":"00011111111","first_name":"dd","last_name":"ddl","user_id":8633}'
+    json_string = r'{"phone_number":"00011111111","first_name":"dd","last_name":"ddl","user_id":8633,"vcard":"SomeContactString"}'
    contact = types.Contact.de_json(json_string)
    assert contact.first_name == 'dd'
    assert contact.last_name == 'ddl'


 def test_json_voice():
-    json_string = r'{"duration": 0,"mime_type": "audio/ogg","file_id": "AwcccccccDH1JaB7w_gyFjYQxVAg","file_size": 10481}'
+    json_string = r'{"duration": 0,"mime_type": "audio/ogg","file_id": "AwcccccccDH1JaB7w_gyFjYQxVAg","file_unique_id": "AgADbAEAAn8VSFY","file_size": 10481}'
    voice = types.Voice.de_json(json_string)
    assert voice.duration == 0
    assert voice.file_size == 10481
@ -187,7 +210,7 @@ def test_json_poll_answer():
    poll_answer = types.PollAnswer.de_json(jsonstring)
    assert poll_answer.poll_id == '5895675970559410186'
    assert isinstance(poll_answer.user, types.User)
-    assert poll_answer.options_ids == [1]
+    assert poll_answer.option_ids == [1]


 def test_KeyboardButtonPollType():
@ -196,3 +219,29 @@ def test_KeyboardButtonPollType():
    json_str = markup.to_json()
    assert 'request_poll' in json_str
    assert 'quiz' in json_str
+
+
+def test_json_chat_invite_link():
+    json_string = r'{"invite_link":"https://t.me/joinchat/MeASP-Wi...","creator":{"id":927266710,"is_bot":false,"first_name":">_run","username":"coder2020","language_code":"ru"},"pending_join_request_count":1,"creates_join_request":true,"is_primary":false,"is_revoked":false}'
+    invite_link = types.ChatInviteLink.de_json(json_string)
+    assert invite_link.invite_link == 'https://t.me/joinchat/MeASP-Wi...'
+    assert isinstance(invite_link.creator, types.User)
+    assert not invite_link.is_primary
+    assert not invite_link.is_revoked
+    assert invite_link.expire_date is None
+    assert invite_link.member_limit is None
+    assert invite_link.name is None
+    assert invite_link.creator.id == 927266710
+    assert invite_link.pending_join_request_count == 1
+    assert invite_link.creates_join_request
+
+
+def test_chat_member_updated():
+    json_string = r'{"chat": {"id": -1234567890123, "type": "supergroup", "title": "No Real Group", "username": "NoRealGroup"}, "from": {"id": 133869498, "is_bot": false, "first_name": "Vincent"}, "date": 1624119999, "old_chat_member": {"user": {"id": 77777777, "is_bot": false, "first_name": "Pepe"}, "status": "member"}, "new_chat_member": {"user": {"id": 77777777, "is_bot": false, "first_name": "Pepe"}, "status": "administrator"}}'
+    cm_updated = types.ChatMemberUpdated.de_json(json_string)
+    assert cm_updated.chat.id == -1234567890123
+    assert cm_updated.from_user.id == 133869498
+    assert cm_updated.date == 1624119999
+    assert cm_updated.old_chat_member.status == "member"
+    assert cm_updated.new_chat_member.status == "administrator"
+