def de_json(cls, data, bot):
        if not data:
            return None

        data = super(Message, cls).de_json(data, bot)

        data['from_user'] = User.de_json(data.get('from'), bot)
        data['date'] = from_timestamp(data['date'])
        data['chat'] = Chat.de_json(data.get('chat'), bot)
        data['entities'] = MessageEntity.de_list(data.get('entities'), bot)
        data['forward_from'] = User.de_json(data.get('forward_from'), bot)
        data['forward_from_chat'] = Chat.de_json(data.get('forward_from_chat'), bot)
        data['forward_date'] = from_timestamp(data.get('forward_date'))
        data['reply_to_message'] = Message.de_json(data.get('reply_to_message'), bot)
        data['edit_date'] = from_timestamp(data.get('edit_date'))
        data['audio'] = Audio.de_json(data.get('audio'), bot)
        data['document'] = Document.de_json(data.get('document'), bot)
        data['game'] = Game.de_json(data.get('game'), bot)
        data['photo'] = PhotoSize.de_list(data.get('photo'), bot)
        data['sticker'] = Sticker.de_json(data.get('sticker'), bot)
        data['video'] = Video.de_json(data.get('video'), bot)
        data['voice'] = Voice.de_json(data.get('voice'), bot)
        data['video_note'] = VideoNote.de_json(data.get('video_note'), bot)
        data['contact'] = Contact.de_json(data.get('contact'), bot)
        data['location'] = Location.de_json(data.get('location'), bot)
        data['venue'] = Venue.de_json(data.get('venue'), bot)
        data['new_chat_member'] = User.de_json(data.get('new_chat_member'), bot)
        data['new_chat_members'] = User.de_list(data.get('new_chat_members'), bot)
        data['left_chat_member'] = User.de_json(data.get('left_chat_member'), bot)
        data['new_chat_photo'] = PhotoSize.de_list(data.get('new_chat_photo'), bot)
        data['pinned_message'] = Message.de_json(data.get('pinned_message'), bot)
        data['invoice'] = Invoice.de_json(data.get('invoice'), bot)
        data['successful_payment'] = SuccessfulPayment.de_json(data.get('successful_payment'), bot)

        return cls(bot=bot, **data)

    def de_json(data):
        """
        Args:
            data (dict):

        Returns:
            telegram.Message:
        """
        if not data:
            return None

        data['from_user'] = User.de_json(data.get('from'))
        data['date'] = datetime.fromtimestamp(data['date'])
        data['chat'] = Chat.de_json(data.get('chat'))
        data['entities'] = MessageEntity.de_list(data.get('entities'))
        data['forward_from'] = User.de_json(data.get('forward_from'))
        data['forward_date'] = Message._fromtimestamp(data.get('forward_date'))
        data['reply_to_message'] = \
            Message.de_json(data.get('reply_to_message'))
        data['audio'] = Audio.de_json(data.get('audio'))
        data['document'] = Document.de_json(data.get('document'))
        data['photo'] = PhotoSize.de_list(data.get('photo'))
        data['sticker'] = Sticker.de_json(data.get('sticker'))
        data['video'] = Video.de_json(data.get('video'))
        data['voice'] = Voice.de_json(data.get('voice'))
        data['contact'] = Contact.de_json(data.get('contact'))
        data['location'] = Location.de_json(data.get('location'))
        data['venue'] = Venue.de_json(data.get('venue'))
        data['new_chat_member'] = User.de_json(data.get('new_chat_member'))
        data['left_chat_member'] = User.de_json(data.get('left_chat_member'))
        data['new_chat_photo'] = PhotoSize.de_list(data.get('new_chat_photo'))
        data['pinned_message'] = Message.de_json(data.get('pinned_message'))

        return Message(**data)

    def de_json(data):
        """
        Args:
            data (str):

        Returns:
            telegram.Message:
        """
        if not data:
            return None

        data['from_user'] = User.de_json(data.get('from'))
        data['date'] = datetime.fromtimestamp(data['date'])
        if 'first_name' in data.get('chat', ''):
            data['chat'] = User.de_json(data.get('chat'))
        elif 'title' in data.get('chat', ''):
            data['chat'] = GroupChat.de_json(data.get('chat'))
        data['forward_from'] = \
            User.de_json(data.get('forward_from'))
        data['forward_date'] = \
            Message._fromtimestamp(data.get('forward_date'))
        data['reply_to_message'] = \
            Message.de_json(data.get('reply_to_message'))
        data['audio'] = \
            Audio.de_json(data.get('audio'))
        data['document'] = \
            Document.de_json(data.get('document'))
        data['photo'] = \
            PhotoSize.de_list(data.get('photo'))
        data['sticker'] = \
            Sticker.de_json(data.get('sticker'))
        data['video'] = \
            Video.de_json(data.get('video'))
        data['voice'] = \
            Voice.de_json(data.get('voice'))
        data['contact'] = \
            Contact.de_json(data.get('contact'))
        data['location'] = \
            Location.de_json(data.get('location'))
        data['new_chat_participant'] = \
            User.de_json(data.get('new_chat_participant'))
        data['left_chat_participant'] = \
            User.de_json(data.get('left_chat_participant'))
        data['new_chat_photo'] = \
            PhotoSize.de_list(data.get('new_chat_photo'))

        return Message(**data)

    def de_json(data):
        if not data:
            return None

        data['from_user'] = User.de_json(data.get('from'))
        data['message'] = Message.de_json(data.get('message'))

        return CallbackQuery(**data)

    def de_json(cls, data, bot):
        data = super(MessageEntity, cls).de_json(data, bot)

        if not data:
            return None

        data['user'] = User.de_json(data.get('user'), bot)

        return cls(**data)

    def de_json(cls, data, bot):
        if not data:
            return None

        data = super(GameHighScore, cls).de_json(data, bot)

        data['user'] = User.de_json(data.get('user'), bot)

        return cls(**data)

    def test_de_json(self, json_dict, bot):
        user = User.de_json(json_dict, bot)

        assert user.id == self.id
        assert user.is_bot == self.is_bot
        assert user.first_name == self.first_name
        assert user.last_name == self.last_name
        assert user.username == self.username
        assert user.language_code == self.language_code

    def de_json(cls, data, bot):
        if not data:
            return None

        data = super(ChatMember, cls).de_json(data, bot)

        data['user'] = User.de_json(data.get('user'), bot)
        data['until_date'] = from_timestamp(data.get('until_date', None))

        return cls(**data)

    def de_json(cls, data, bot):
        if not data:
            return None

        data = super(CallbackQuery, cls).de_json(data, bot)

        data['from_user'] = User.de_json(data.get('from'), bot)
        data['message'] = Message.de_json(data.get('message'), bot)

        return cls(bot=bot, **data)

    def de_json(cls, data, bot):
        if not data:
            return None

        data = super(PreCheckoutQuery, cls).de_json(data, bot)

        data['from_user'] = User.de_json(data.pop('from'), bot)
        data['order_info'] = OrderInfo.de_json(data.get('order_info'), bot)

        return cls(**data)

    def de_json(cls, data, bot):
        if not data:
            return None

        data = super(ShippingQuery, cls).de_json(data, bot)

        data['from_user'] = User.de_json(data.pop('from'), bot)
        data['shipping_address'] = ShippingAddress.de_json(data.get('shipping_address'), bot)

        return cls(**data)

    def de_json(cls, data, bot):
        data = super(InlineQuery, cls).de_json(data, bot)

        if not data:
            return None

        data['from_user'] = User.de_json(data.get('from'), bot)
        data['location'] = Location.de_json(data.get('location'), bot)

        return cls(bot=bot, **data)

    def test_de_json_without_username(self, json_dict, bot):
        del json_dict['username']

        user = User.de_json(json_dict, bot)

        assert user.id == self.id
        assert user.is_bot == self.is_bot
        assert user.first_name == self.first_name
        assert user.last_name == self.last_name
        assert user.username is None
        assert user.language_code == self.language_code

    def de_json(cls, data, bot):
        if not data:
            return None

        data = super(ChosenInlineResult, cls).de_json(data, bot)
        # Required
        data['from_user'] = User.de_json(data.pop('from'), bot)
        # Optionals
        data['location'] = Location.de_json(data.get('location'), bot)

        return cls(**data)

    def getMe(self):
        """A simple method for testing your bot's auth token.

        Returns:
          A telegram.User instance representing that bot if the
          credentials are valid, None otherwise.
        """
        url = "%s/getMe" % (self.base_url)

        json_data = self._requestUrl(url, "GET")
        data = self._parseAndCheckTelegram(json_data.decode())

        return User.de_json(data)

    def getMe(self):
        """A simple method for testing your bot's auth token.

        Returns:
          A telegram.User instance representing that bot if the
          credentials are valid, None otherwise.
        """
        url = '%s/getMe' % self.base_url

        result = request.get(url)

        self.bot = User.de_json(result)

        return self.bot

    def de_json(data):
        """
        Args:
            data (dict):

        Returns:
            telegram.ChatMember:
        """
        if not data:
            return None

        data['user'] = User.de_json(data.get('user'))

        return ChatMember(**data)

    def de_json(data):
        """
        Args:
            data (dict):

        Returns:
            telegram.ChosenInlineResult:
        """
        if not data:
            return None
        data = data.copy()
        data['from_user'] = User.de_json(data.pop('from'))

        return ChosenInlineResult(**data)

    def de_json(data):
        """
        Args:
            data (dict):

        Returns:
            telegram.InlineQuery:
        """
        if not data:
            return None
        data = data.copy()
        data['from_user'] = User.de_json(data.pop('from'))

        return InlineQuery(**data)

    def de_json(data, bot):
        """
        Args:
            data (dict):
            bot (telegram.Bot):

        Returns:
            telegram.ChatMember:
        """
        if not data:
            return None

        data["user"] = User.de_json(data.get("user"), bot)

        return ChatMember(**data)