import asyncio # for future uses
import ssl
import aiohttp
import certifi
from telebot import types

try:
    import ujson as json
except ImportError:
    import json
import os
API_URL = 'https://api.telegram.org/bot{0}/{1}'

from datetime import datetime

from telebot import util
import logging

logger = logging.getLogger('TeleBot')

proxy = None
session = None

FILE_URL = None

REQUEST_TIMEOUT = 300
MAX_RETRIES = 3

REQUEST_LIMIT = 50

class SessionManager:
    def __init__(self) -> None:
        self.session = None
        self.ssl_context = ssl.create_default_context(cafile=certifi.where())


    async def create_session(self):
        self.session = aiohttp.ClientSession(connector=aiohttp.TCPConnector(
            limit=REQUEST_LIMIT,
            ssl_context=self.ssl_context
        ))
        return self.session

    async def get_session(self):
        if self.session is None:
            self.session = await self.create_session()
            return self.session
            
        if self.session.closed:
            self.session = await self.create_session()

        # noinspection PyProtectedMember
        if not self.session._loop.is_running():
            await self.session.close()
            self.session = await self.create_session()
        return self.session


session_manager = SessionManager()

async def _process_request(token, url, method='get', params=None, files=None, **kwargs):
    # Let's resolve all timeout parameters.
    # getUpdates parameter may contain 2 parameters: request_timeout & timeout.
    # other methods may contain timeout parameter that should be applied to
    # ClientTimeout only.
    # timeout should be added to params for getUpdates. All other timeout's should be used
    # for request timeout.
    # here we got request_timeout, so this is getUpdates method.
    if 'request_timeout' in kwargs:
        request_timeout = kwargs.pop('request_timeout')

    else:
        # let's check for timeout in params
        request_timeout = params.pop('timeout', None) if params else None
        # we will apply default request_timeout if there is no timeout in params
        # otherwise, we will use timeout parameter applied for payload.
    
    request_timeout = REQUEST_TIMEOUT if request_timeout is None else request_timeout
    

    # Preparing data by adding all parameters and files to FormData
    params = _prepare_data(params, files)

    timeout = aiohttp.ClientTimeout(total=request_timeout)
    got_result = False
    current_try=0
    session = await session_manager.get_session()
    while not got_result and current_try<MAX_RETRIES-1:
        current_try +=1
        try:
            async with session.request(method=method, url=API_URL.format(token, url), data=params, timeout=timeout, proxy=proxy) as resp:
                got_result = True
                logger.debug("Request: method={0} url={1} params={2} files={3} request_timeout={4} current_try={5}".format(method, url, params, files, request_timeout, current_try).replace(token, token.split(':')[0] + ":{TOKEN}"))
                
                json_result = await _check_result(url, resp)
                if json_result:
                    return json_result['result']
        except (ApiTelegramException,ApiInvalidJSONException, ApiHTTPException) as e:
            raise e
        except aiohttp.ClientError as e:
            logger.error('Aiohttp ClientError: {0}'.format(e.__class__.__name__))
        except Exception as e:
            logger.error(f'Unknown error: {e.__class__.__name__}')
        if not got_result:
            raise RequestTimeout("Request timeout. Request: method={0} url={1} params={2} files={3} request_timeout={4}".format(method, url, params, files, request_timeout, current_try))
        
def _prepare_file(obj):
    """
    Prepares file for upload.
    """
    name = getattr(obj, 'name', None)
    if name and isinstance(name, str) and name[0] != '<' and name[-1] != '>':
        return os.path.basename(name)

def _prepare_data(params=None, files=None):
    """
    Adds the parameters and files to the request.

    :param params:
    :param files:
    :return:
    """
    data = aiohttp.formdata.FormData(quote_fields=False)

    if params:
        for key, value in params.items():
            data.add_field(key, str(value))
    if files:
        for key, f in files.items():
            if isinstance(f, tuple):
                if len(f) == 2:
                    file_name, file = f
                else:
                    raise ValueError('Tuple must have exactly 2 elements: filename, fileobj')
            elif isinstance(f, types.InputFile):
                file_name = f.file_name
                file = f.file
            else:
                file_name, file = _prepare_file(f) or key, f

            data.add_field(key, file, filename=file_name)

    return data

async def _convert_markup(markup):
    if isinstance(markup, types.JsonSerializable):
        return markup.to_json()
    return markup



async def get_me(token):
    method_url = r'getMe'
    return await _process_request(token, method_url)


async def log_out(token):
    method_url = r'logOut'
    return await _process_request(token, method_url)


async def close(token):
    method_url = r'close'
    return await _process_request(token, method_url)


async def get_file(token, file_id):
    method_url = r'getFile'
    return await _process_request(token, method_url, params={'file_id': file_id})


async def get_file_url(token, file_id):
    if FILE_URL is None:
        return "https://api.telegram.org/file/bot{0}/{1}".format(token, (await get_file(token, file_id))['file_path'])
    else:
        # noinspection PyUnresolvedReferences
        return FILE_URL.format(token, (await get_file(token, file_id))['file_path'])


async def download_file(token, file_path):
    if FILE_URL is None:
        url =  "https://api.telegram.org/file/bot{0}/{1}".format(token, file_path)
    else:
        # noinspection PyUnresolvedReferences
        url =  FILE_URL.format(token, file_path)
    session = await session_manager.get_session()
    async with session.get(url, proxy=proxy) as response:
        if response.status != 200:
            raise ApiHTTPException('Download file', response)
        result = await response.read()
    
    return result


async def set_webhook(token, url=None, certificate=None, max_connections=None, allowed_updates=None, ip_address=None,
                drop_pending_updates = None, timeout=None, secret_token=None):
    method_url = r'setWebhook'
    payload = {
        'url': url if url else "",
    }
    files = None
    if certificate:
        files = {'certificate': certificate}
    if max_connections:
        payload['max_connections'] = max_connections
    if allowed_updates is not None:       # Empty lists should pass
        payload['allowed_updates'] = json.dumps(allowed_updates)
    if ip_address is not None:            # Empty string should pass
        payload['ip_address'] = ip_address
    if drop_pending_updates is not None:  # Any bool value should pass
        payload['drop_pending_updates'] = drop_pending_updates
    if timeout:
        payload['timeout'] = timeout
    if secret_token:
        payload['secret_token'] = secret_token
    return await _process_request(token, method_url, params=payload, files=files)


async def delete_webhook(token, drop_pending_updates=None, timeout=None):
    method_url = r'deleteWebhook'
    payload = {}
    if drop_pending_updates is not None:  # Any bool value should pass
        payload['drop_pending_updates'] = drop_pending_updates
    if timeout:
        payload['timeout'] = timeout
    return await _process_request(token, method_url, params=payload)


async def get_webhook_info(token, timeout=None):
    method_url = r'getWebhookInfo'
    payload = {}
    if timeout:
        payload['timeout'] = timeout
    return await _process_request(token, method_url, params=payload)



async def get_updates(token, offset=None, limit=None,
        timeout=None, allowed_updates=None, request_timeout=None):
    method_name = 'getUpdates'
    params = {}
    if offset:
        params['offset'] = offset
    if limit:
        params['limit'] = limit
    if timeout:
        params['timeout'] = timeout
    if allowed_updates is not None:  # Empty lists should pass
        params['allowed_updates'] = json.dumps(allowed_updates)
    return await _process_request(token, method_name, params=params, request_timeout=request_timeout)

async def _check_result(method_name, result: aiohttp.ClientResponse):
    """
    Checks whether `result` is a valid API response.
    A result is considered invalid if:
        - The server returned an HTTP response code other than 200
        - The content of the result is invalid JSON.
        - The method call was unsuccessful (The JSON 'ok' field equals False)

    :raises ApiException: if one of the above listed cases is applicable
    :param method_name: The name of the method called
    :param result: The returned result of the method request
    :return: The result parsed to a JSON dictionary.
    """
    try:
        result_json = await result.json(encoding="utf-8")
    except:
        if result.status != 200:
            raise ApiHTTPException(method_name, result)
        else:
            raise ApiInvalidJSONException(method_name, result)
    else:    
        if not result_json['ok']:
            raise ApiTelegramException(method_name, result, result_json)
            
        return result_json


async def send_message(
        token, chat_id, text,
        reply_markup=None,
        parse_mode=None, disable_notification=None, timeout=None,
        entities=None, protect_content=None,
        message_thread_id=None, reply_parameters=None, link_preview_options=None):
    method_name = 'sendMessage'
    params = {'chat_id': str(chat_id), 'text': text}
    if link_preview_options is not None:
        params['link_preview_options'] = json.dumps(link_preview_options.to_dict())
    if reply_markup:
        params['reply_markup'] = await _convert_markup(reply_markup)
    if parse_mode:
        params['parse_mode'] = parse_mode
    if disable_notification is not None:
        params['disable_notification'] = disable_notification
    if timeout:
        params['timeout'] = timeout
    if entities:
        params['entities'] = json.dumps(types.MessageEntity.to_list_of_dicts(entities))
    if reply_parameters is not None:
        params['reply_parameters'] = json.dumps(reply_parameters.to_dict())
    if protect_content is not None:
        params['protect_content'] = protect_content
    if message_thread_id:
        params['message_thread_id'] = message_thread_id
    
    return await _process_request(token, method_name, params=params)

# methods

async def get_user_profile_photos(token, user_id, offset=None, limit=None):
    method_url = r'getUserProfilePhotos'
    payload = {'user_id': user_id}
    if offset:
        payload['offset'] = offset
    if limit:
        payload['limit'] = limit
    return await _process_request(token, method_url, params=payload)

async def set_message_reaction(token, chat_id, message_id, reaction=None, is_big=None):
    method_url = r'setMessageReaction'
    payload = {'chat_id': chat_id, 'message_id': message_id}
    if reaction:
        payload['reaction'] = json.dumps([r.to_dict() for r in reaction])
    if is_big is not None:
        payload['is_big'] = is_big
    return await _process_request(token, method_url, params=payload)


async def get_chat(token, chat_id):
    method_url = r'getChat'
    payload = {'chat_id': chat_id}
    return await _process_request(token, method_url, params=payload)


async def leave_chat(token, chat_id):
    method_url = r'leaveChat'
    payload = {'chat_id': chat_id}
    return await _process_request(token, method_url, params=payload)


async def get_chat_administrators(token, chat_id):
    method_url = r'getChatAdministrators'
    payload = {'chat_id': chat_id}
    return await _process_request(token, method_url, params=payload)


async def get_chat_member_count(token, chat_id):
    method_url = r'getChatMemberCount'
    payload = {'chat_id': chat_id}
    return await _process_request(token, method_url, params=payload)


async def set_sticker_set_thumbnail(token, name, user_id, thumbnail):
    method_url = r'setStickerSetThumbnail'
    payload = {'name': name, 'user_id': user_id}
    files = {}
    if thumbnail:
        if not isinstance(thumbnail, str):
            files['thumbnail'] = thumbnail
        else:
            payload['thumbnail'] = thumbnail
    return await _process_request(token, method_url, params=payload, files=files or None)


async def set_chat_sticker_set(token, chat_id, sticker_set_name):
    method_url = r'setChatStickerSet'
    payload = {'chat_id': chat_id, 'sticker_set_name': sticker_set_name}
    return await _process_request(token, method_url, params=payload)


async def delete_chat_sticker_set(token, chat_id):
    method_url = r'deleteChatStickerSet'
    payload = {'chat_id': chat_id}
    return await _process_request(token, method_url, params=payload)


async def answer_web_app_query(token, web_app_query_id, result: types.InlineQueryResultBase):
    method_url = 'answerWebAppQuery'
    payload = {'web_app_query_id': web_app_query_id, 'result': result.to_json()}
    return await _process_request(token, method_url, params=payload, method='post')


async def get_chat_member(token, chat_id, user_id):
    method_url = r'getChatMember'
    payload = {'chat_id': chat_id, 'user_id': user_id}
    return await _process_request(token, method_url, params=payload)


async def forward_message(
        token, chat_id, from_chat_id, message_id,
        disable_notification=None, timeout=None, protect_content=None,
        message_thread_id=None):
    method_url = r'forwardMessage'
    payload = {'chat_id': chat_id, 'from_chat_id': from_chat_id, 'message_id': message_id}
    if disable_notification is not None:
        payload['disable_notification'] = disable_notification
    if timeout:
        payload['timeout'] = timeout
    if protect_content is not None:
        payload['protect_content'] = protect_content
    if message_thread_id:
        payload['message_thread_id'] = message_thread_id
    return await _process_request(token, method_url, params=payload)


async def copy_message(token, chat_id, from_chat_id, message_id, caption=None, parse_mode=None, caption_entities=None,
                 disable_notification=None,  
                 reply_markup=None, timeout=None, protect_content=None, message_thread_id=None, reply_parameters=None):
    method_url = r'copyMessage'
    payload = {'chat_id': chat_id, 'from_chat_id': from_chat_id, 'message_id': message_id}
    if caption is not None:
        payload['caption'] = caption
    if parse_mode:
        payload['parse_mode'] = parse_mode
    if caption_entities is not None:
        payload['caption_entities'] = await _convert_entites(caption_entities)
    if disable_notification is not None:
        payload['disable_notification'] = disable_notification
    if reply_parameters is not None:
        payload['reply_parameters'] = json.dumps(reply_parameters.to_dict())
    if reply_markup is not None:
        payload['reply_markup'] = await _convert_markup(reply_markup)
    if timeout:
        payload['timeout'] = timeout
    if protect_content is not None:
        payload['protect_content'] = protect_content
    if message_thread_id:
        payload['message_thread_id'] = message_thread_id
    return await _process_request(token, method_url, params=payload)


async def send_dice(
        token, chat_id,
        emoji=None, disable_notification=None, 
        reply_markup=None, timeout=None,  protect_content=None,
        message_thread_id=None,reply_parameters=None):
    method_url = r'sendDice'
    payload = {'chat_id': chat_id}
    if emoji:
        payload['emoji'] = emoji
    if disable_notification is not None:
        payload['disable_notification'] = disable_notification
    if reply_markup:
        payload['reply_markup'] = await _convert_markup(reply_markup)
    if timeout:
        payload['timeout'] = timeout
    if protect_content is not None:
        payload['protect_content'] = protect_content
    if message_thread_id:
        payload['message_thread_id'] = message_thread_id
    if reply_parameters is not None:
        payload['reply_parameters'] = json.dumps(reply_parameters.to_dict())
    return await _process_request(token, method_url, params=payload)


async def send_photo(
        token, chat_id, photo,
        caption=None,  reply_markup=None,
        parse_mode=None, disable_notification=None, timeout=None,
        caption_entities=None,  protect_content=None,
        message_thread_id=None, has_spoiler=None,reply_parameters=None):
    method_url = r'sendPhoto'
    payload = {'chat_id': chat_id}
    files = None
    if util.is_string(photo):
        payload['photo'] = photo
    elif util.is_pil_image(photo):
        files = {'photo': util.pil_image_to_file(photo)}
    else:
        files = {'photo': photo}
    if caption:
        payload['caption'] = caption
    if reply_markup:
        payload['reply_markup'] = await _convert_markup(reply_markup)
    if parse_mode:
        payload['parse_mode'] = parse_mode
    if disable_notification is not None:
        payload['disable_notification'] = disable_notification
    if timeout:
        payload['timeout'] = timeout
    if caption_entities:
        payload['caption_entities'] = json.dumps(types.MessageEntity.to_list_of_dicts(caption_entities))
    if reply_parameters is not None:
        payload['reply_parameters'] = json.dumps(reply_parameters.to_dict())
    if protect_content is not None:
        payload['protect_content'] = protect_content
    if message_thread_id:
        payload['message_thread_id'] = message_thread_id
    if has_spoiler is not None:
        payload['has_spoiler'] = has_spoiler
    return await _process_request(token, method_url, params=payload, files=files, method='post')


async def send_media_group(
        token, chat_id, media,
        disable_notification=None, 
        timeout=None,  protect_content=None, message_thread_id=None,reply_parameters=None):
    method_url = r'sendMediaGroup'
    media_json, files = await convert_input_media_array(media)
    payload = {'chat_id': chat_id, 'media': media_json}
    if disable_notification is not None:
        payload['disable_notification'] = disable_notification
    if timeout:
        payload['timeout'] = timeout
    if protect_content is not None:
        payload['protect_content'] = protect_content
    if message_thread_id:
        payload['message_thread_id'] = message_thread_id
    if reply_parameters is not None:
        payload['reply_parameters'] = json.dumps(reply_parameters.to_dict())
    return await _process_request(
        token, method_url, params=payload,
        method='post' if files else 'get',
        files=files if files else None)


async def send_location(
        token, chat_id, latitude, longitude,
        live_period=None,  
        reply_markup=None, disable_notification=None, 
        timeout=None, horizontal_accuracy=None, heading=None,
        proximity_alert_radius=None,  protect_content=None, message_thread_id=None,reply_parameters=None):
    method_url = r'sendLocation'
    payload = {'chat_id': chat_id, 'latitude': latitude, 'longitude': longitude}
    if live_period:
        payload['live_period'] = live_period
    if horizontal_accuracy:
        payload['horizontal_accuracy'] = horizontal_accuracy
    if heading:
        payload['heading'] = heading
    if proximity_alert_radius:
        payload['proximity_alert_radius'] = proximity_alert_radius
    if reply_parameters is not None:
        payload['reply_parameters'] = json.dumps(reply_parameters.to_dict())
    if reply_markup:
        payload['reply_markup'] = await _convert_markup(reply_markup)
    if disable_notification is not None:
        payload['disable_notification'] = disable_notification
    if timeout:
        payload['timeout'] = timeout
    if protect_content is not None:
        payload['protect_content'] = protect_content
    if message_thread_id:
        payload['message_thread_id'] = message_thread_id
    return await _process_request(token, method_url, params=payload)


async def edit_message_live_location(
        token, latitude, longitude, chat_id=None, message_id=None,
        inline_message_id=None, reply_markup=None, timeout=None,
        horizontal_accuracy=None, heading=None, proximity_alert_radius=None):
    method_url = r'editMessageLiveLocation'
    payload = {'latitude': latitude, 'longitude': longitude}
    if chat_id:
        payload['chat_id'] = chat_id
    if message_id:
        payload['message_id'] = message_id
    if horizontal_accuracy:
        payload['horizontal_accuracy'] = horizontal_accuracy
    if heading:
        payload['heading'] = heading
    if proximity_alert_radius:
        payload['proximity_alert_radius'] = proximity_alert_radius
    if inline_message_id:
        payload['inline_message_id'] = inline_message_id
    if reply_markup:
        payload['reply_markup'] = await _convert_markup(reply_markup)
    if timeout:
        payload['timeout'] = timeout
    return await _process_request(token, method_url, params=payload)


async def stop_message_live_location(
        token, chat_id=None, message_id=None,
        inline_message_id=None, reply_markup=None, timeout=None):
    method_url = r'stopMessageLiveLocation'
    payload = {}
    if chat_id:
        payload['chat_id'] = chat_id
    if message_id:
        payload['message_id'] = message_id
    if inline_message_id:
        payload['inline_message_id'] = inline_message_id
    if reply_markup:
        payload['reply_markup'] = await _convert_markup(reply_markup)
    if timeout:
        payload['timeout'] = timeout
    return await _process_request(token, method_url, params=payload)


async def send_venue(
        token, chat_id, latitude, longitude, title, address,
        foursquare_id=None, foursquare_type=None, disable_notification=None,
         reply_markup=None, timeout=None,
         google_place_id=None,
        google_place_type=None, protect_content=None, message_thread_id=None,reply_parameters=None):
    method_url = r'sendVenue'
    payload = {'chat_id': chat_id, 'latitude': latitude, 'longitude': longitude, 'title': title, 'address': address}
    if foursquare_id:
        payload['foursquare_id'] = foursquare_id
    if foursquare_type:
        payload['foursquare_type'] = foursquare_type
    if disable_notification is not None:
        payload['disable_notification'] = disable_notification
    if reply_parameters is not None:
        payload['reply_parameters'] = json.dumps(reply_parameters.to_dict())
    if reply_markup:
        payload['reply_markup'] = await _convert_markup(reply_markup)
    if timeout:
        payload['timeout'] = timeout
    if google_place_id:
        payload['google_place_id'] = google_place_id
    if google_place_type:
        payload['google_place_type'] = google_place_type
    if protect_content is not None:
        payload['protect_content'] = protect_content
    if message_thread_id:
        payload['message_thread_id'] = message_thread_id
    return await _process_request(token, method_url, params=payload)


async def send_contact(
        token, chat_id, phone_number, first_name, last_name=None, vcard=None,
        disable_notification=None,  reply_markup=None, timeout=None,
         protect_content=None, message_thread_id=None,reply_parameters=None):
    method_url = r'sendContact'
    payload = {'chat_id': chat_id, 'phone_number': phone_number, 'first_name': first_name}
    if last_name:
        payload['last_name'] = last_name
    if vcard:
        payload['vcard'] = vcard
    if disable_notification is not None:
        payload['disable_notification'] = disable_notification
    if reply_parameters is not None:
        payload['reply_parameters'] = json.dumps(reply_parameters.to_dict())
    if reply_markup:
        payload['reply_markup'] = await _convert_markup(reply_markup)
    if timeout:
        payload['timeout'] = timeout
    if protect_content is not None:
        payload['protect_content'] = protect_content
    if message_thread_id:
        payload['message_thread_id'] = message_thread_id
    return await _process_request(token, method_url, params=payload)


async def send_chat_action(token, chat_id, action, timeout=None, message_thread_id=None):
    method_url = r'sendChatAction'
    payload = {'chat_id': chat_id, 'action': action}
    if timeout:
        payload['timeout'] = timeout
    if message_thread_id:
        payload['message_thread_id'] = message_thread_id
    return await _process_request(token, method_url, params=payload)


async def send_video(token, chat_id, data, duration=None, caption=None,  reply_markup=None,
                     parse_mode=None, supports_streaming=None, disable_notification=None, timeout=None,
                     thumbnail=None, width=None, height=None, caption_entities=None, 
                     protect_content=None, message_thread_id=None, has_spoiler=None,reply_parameters=None):
    method_url = r'sendVideo'
    payload = {'chat_id': chat_id}
    files = None
    if not util.is_string(data):
        files = {'video': data}
    else:
        payload['video'] = data
    if duration:
        payload['duration'] = duration
    if caption:
        payload['caption'] = caption
    if reply_parameters is not None:
        payload['reply_parameters'] = json.dumps(reply_parameters.to_dict())
    if reply_markup:
        payload['reply_markup'] = await _convert_markup(reply_markup)
    if parse_mode:
        payload['parse_mode'] = parse_mode
    if supports_streaming is not None:
        payload['supports_streaming'] = supports_streaming
    if disable_notification is not None:
        payload['disable_notification'] = disable_notification
    if timeout:
        payload['timeout'] = timeout
    if thumbnail:
        if not util.is_string(thumbnail):
            if files:
                files['thumbnail'] = thumbnail
            else:
                files = {'thumbnail': thumbnail}
        else:
            payload['thumbnail'] = thumbnail
    if width:
        payload['width'] = width
    if height:
        payload['height'] = height
    if caption_entities:
        payload['caption_entities'] = json.dumps(types.MessageEntity.to_list_of_dicts(caption_entities))
    if protect_content is not None:
        payload['protect_content'] = protect_content
    if message_thread_id:
        payload['message_thread_id'] = message_thread_id
    if has_spoiler is not None:
        payload['has_spoiler'] = has_spoiler
    return await _process_request(token, method_url, params=payload, files=files, method='post')


async def send_animation(
        token, chat_id, data, duration=None, caption=None,  reply_markup=None,
        parse_mode=None, disable_notification=None, timeout=None, thumbnail=None, caption_entities=None,
         width=None, height=None, protect_content=None, message_thread_id=None,
        has_spoiler=None,reply_parameters=None):
    method_url = r'sendAnimation'
    payload = {'chat_id': chat_id}
    files = None
    if not util.is_string(data):
        files = {'animation': data}
    else:
        payload['animation'] = data
    if duration:
        payload['duration'] = duration
    if caption:
        payload['caption'] = caption
    if reply_parameters is not None:
        payload['reply_parameters'] = json.dumps(reply_parameters.to_dict())
    if reply_markup:
        payload['reply_markup'] = await _convert_markup(reply_markup)
    if parse_mode:
        payload['parse_mode'] = parse_mode
    if disable_notification is not None:
        payload['disable_notification'] = disable_notification
    if timeout:
        payload['timeout'] = timeout
    if thumbnail:
        if not util.is_string(thumbnail):
            if files:
                files['thumbnail'] = thumbnail
            else:
                files = {'thumbnail': thumbnail}
        else:
            payload['thumbnail'] = thumbnail
    if caption_entities:
        payload['caption_entities'] = json.dumps(types.MessageEntity.to_list_of_dicts(caption_entities))
    if width:
        payload['width'] = width
    if height:
        payload['height'] = height
    if protect_content is not None:
        payload['protect_content'] = protect_content
    if message_thread_id:
        payload['message_thread_id'] = message_thread_id
    if has_spoiler is not None:
        payload['has_spoiler'] = has_spoiler
    return await _process_request(token, method_url, params=payload, files=files, method='post')


async def send_voice(token, chat_id, voice, caption=None, duration=None,  reply_markup=None,
               parse_mode=None, disable_notification=None, timeout=None, caption_entities=None,
                protect_content=None, message_thread_id=None,reply_parameters=None):
    method_url = r'sendVoice'
    payload = {'chat_id': chat_id}
    files = None
    if not util.is_string(voice):
        files = {'voice': voice}
    else:
        payload['voice'] = voice
    if caption:
        payload['caption'] = caption
    if duration:
        payload['duration'] = duration
    if reply_parameters is not None:
        payload['reply_parameters'] = json.dumps(reply_parameters.to_dict())
    if reply_markup:
        payload['reply_markup'] = await _convert_markup(reply_markup)
    if parse_mode:
        payload['parse_mode'] = parse_mode
    if disable_notification is not None:
        payload['disable_notification'] = disable_notification
    if timeout:
        payload['timeout'] = timeout
    if caption_entities:
        payload['caption_entities'] = json.dumps(types.MessageEntity.to_list_of_dicts(caption_entities))
    if protect_content is not None:
        payload['protect_content'] = protect_content
    if message_thread_id:
        payload['message_thread_id'] = message_thread_id
    return await _process_request(token, method_url, params=payload, files=files, method='post')


async def send_video_note(token, chat_id, data, duration=None, length=None,  reply_markup=None,
                          disable_notification=None, timeout=None, thumbnail=None,  protect_content=None,
                          message_thread_id=None,reply_parameters=None):
    method_url = r'sendVideoNote'
    payload = {'chat_id': chat_id}
    files = None
    if not util.is_string(data):
        files = {'video_note': data}
    else:
        payload['video_note'] = data
    if duration:
        payload['duration'] = duration
    if length and (str(length).isdigit() and int(length) <= 639):
        payload['length'] = length
    else:
        payload['length'] = 639  # seems like it is MAX length size
    if reply_parameters is not None:
        payload['reply_parameters'] = json.dumps(reply_parameters.to_dict())
    if reply_markup:
        payload['reply_markup'] = await _convert_markup(reply_markup)
    if disable_notification is not None:
        payload['disable_notification'] = disable_notification
    if timeout:
        payload['timeout'] = timeout
    if thumbnail:
        if not util.is_string(thumbnail):
            if files:
                files['thumbnail'] = thumbnail
            else:
                files = {'thumbnail': thumbnail}
        else:
            payload['thumbnail'] = thumbnail
    if protect_content is not None:
        payload['protect_content'] = protect_content
    if message_thread_id:
        payload['message_thread_id'] = message_thread_id
    return await _process_request(token, method_url, params=payload, files=files, method='post')


async def send_audio(token, chat_id, audio, caption=None, duration=None, performer=None, title=None, 
                     reply_markup=None, parse_mode=None, disable_notification=None, timeout=None, thumbnail=None,
                     caption_entities=None,  protect_content=None, message_thread_id=None,reply_parameters=None):
    method_url = r'sendAudio'
    payload = {'chat_id': chat_id}
    files = None
    if not util.is_string(audio):
        files = {'audio': audio}
    else:
        payload['audio'] = audio
    if caption:
        payload['caption'] = caption
    if duration:
        payload['duration'] = duration
    if performer:
        payload['performer'] = performer
    if title:
        payload['title'] = title
    if reply_parameters is not None:
        payload['reply_parameters'] = json.dumps(reply_parameters.to_dict())
    if reply_markup:
        payload['reply_markup'] = await _convert_markup(reply_markup)
    if parse_mode:
        payload['parse_mode'] = parse_mode
    if disable_notification is not None:
        payload['disable_notification'] = disable_notification
    if timeout:
        payload['timeout'] = timeout
    if thumbnail:
        if not util.is_string(thumbnail):
            if files:
                files['thumbnail'] = thumbnail
            else:
                files = {'thumbnail': thumbnail}
        else:
            payload['thumbnail'] = thumbnail
    if caption_entities:
        payload['caption_entities'] = json.dumps(types.MessageEntity.to_list_of_dicts(caption_entities))
    if protect_content is not None:
        payload['protect_content'] = protect_content
    if message_thread_id:
        payload['message_thread_id'] = message_thread_id
    return await _process_request(token, method_url, params=payload, files=files, method='post')


async def send_data(token, chat_id, data, data_type,  reply_markup=None, parse_mode=None,
                    disable_notification=None, timeout=None, caption=None, thumbnail=None, caption_entities=None,
                     disable_content_type_detection=None, visible_file_name=None, protect_content=None,
                    message_thread_id=None, emoji=None,reply_parameters=None):
    method_url = await get_method_by_type(data_type)
    payload = {'chat_id': chat_id}
    files = None
    if not util.is_string(data):
        file_data = data
        if visible_file_name:
            file_data = (visible_file_name, data)
        files = {data_type: file_data}
    else:
        payload[data_type] = data
    if reply_parameters is not None:
        payload['reply_parameters'] = json.dumps(reply_parameters.to_dict())
    if reply_markup:
        payload['reply_markup'] = await _convert_markup(reply_markup)
    if parse_mode and data_type == 'document':
        payload['parse_mode'] = parse_mode
    if disable_notification is not None:
        payload['disable_notification'] = disable_notification
    if timeout:
        payload['timeout'] = timeout
    if caption:
        payload['caption'] = caption
    if thumbnail:
        if not util.is_string(thumbnail):
            if files:
                files['thumbnail'] = thumbnail
            else:
                files = {'thumbnail': thumbnail}
        else:
            payload['thumbnail'] = thumbnail
    if caption_entities:
        payload['caption_entities'] = json.dumps(types.MessageEntity.to_list_of_dicts(caption_entities))
    if protect_content is not None:
        payload['protect_content'] = protect_content
    if method_url == 'sendDocument' and disable_content_type_detection is not None:
        payload['disable_content_type_detection'] = disable_content_type_detection
    if message_thread_id:
        payload['message_thread_id'] = message_thread_id
    if emoji:
        payload['emoji'] = emoji
    return await _process_request(token, method_url, params=payload, files=files, method='post')


async def get_method_by_type(data_type):
    if data_type == 'document':
        return r'sendDocument'
    if data_type == 'sticker':
        return r'sendSticker'


async def ban_chat_member(token, chat_id, user_id, until_date=None, revoke_messages=None):
    method_url = 'banChatMember'
    payload = {'chat_id': chat_id, 'user_id': user_id}
    if isinstance(until_date, datetime):
        payload['until_date'] = until_date.timestamp()
    else:
        payload['until_date'] = until_date
    if revoke_messages is not None:
        payload['revoke_messages'] = revoke_messages
    return await _process_request(token, method_url, params=payload, method='post')


async def unban_chat_member(token, chat_id, user_id, only_if_banned):
    method_url = 'unbanChatMember'
    payload = {'chat_id': chat_id, 'user_id': user_id}
    if only_if_banned is not None:  # None / True / False
        payload['only_if_banned'] = only_if_banned
    return await _process_request(token, method_url, params=payload, method='post')


async def restrict_chat_member(
        token, chat_id, user_id, permissions, until_date=None,
        use_independent_chat_permissions=None):
    method_url = 'restrictChatMember'
    payload = {'chat_id': chat_id, 'user_id': user_id, 'permissions': permissions.to_json()}

    if use_independent_chat_permissions is not None:
        payload['use_independent_chat_permissions'] = use_independent_chat_permissions
    if until_date is not None:
        if isinstance(until_date, datetime):
            payload['until_date'] = until_date.timestamp()
        else:
            payload['until_date'] = until_date
    return await _process_request(token, method_url, params=payload, method='post')


async def promote_chat_member(
        token, chat_id, user_id, can_change_info=None, can_post_messages=None,
        can_edit_messages=None, can_delete_messages=None, can_invite_users=None,
        can_restrict_members=None, can_pin_messages=None, can_promote_members=None,
        is_anonymous=None, can_manage_chat=None, can_manage_video_chats=None, can_manage_topics=None,
        can_post_stories=None, can_edit_stories=None, can_delete_stories=None):
    method_url = 'promoteChatMember'
    payload = {'chat_id': chat_id, 'user_id': user_id}
    if can_change_info is not None:
        payload['can_change_info'] = can_change_info
    if can_post_messages is not None:
        payload['can_post_messages'] = can_post_messages
    if can_edit_messages is not None:
        payload['can_edit_messages'] = can_edit_messages
    if can_delete_messages is not None:
        payload['can_delete_messages'] = can_delete_messages
    if can_invite_users is not None:
        payload['can_invite_users'] = can_invite_users
    if can_restrict_members is not None:
        payload['can_restrict_members'] = can_restrict_members
    if can_pin_messages is not None:
        payload['can_pin_messages'] = can_pin_messages
    if can_promote_members is not None:
        payload['can_promote_members'] = can_promote_members
    if is_anonymous is not None:
        payload['is_anonymous'] = is_anonymous
    if can_manage_chat is not None:
        payload['can_manage_chat'] = can_manage_chat
    if can_manage_video_chats is not None:
        payload['can_manage_video_chats'] = can_manage_video_chats
    if can_manage_topics is not None:
        payload['can_manage_topics'] = can_manage_topics
    if can_post_stories is not None:
        payload['can_post_stories'] = can_post_stories
    if can_edit_stories is not None:
        payload['can_edit_stories'] = can_edit_stories
    if can_delete_stories is not None:
        payload['can_delete_stories'] = can_delete_stories
    return await _process_request(token, method_url, params=payload, method='post')


async def set_chat_administrator_custom_title(token, chat_id, user_id, custom_title):
    method_url = 'setChatAdministratorCustomTitle'
    payload = {
        'chat_id': chat_id, 'user_id': user_id, 'custom_title': custom_title
    }
    return await _process_request(token, method_url, params=payload, method='post')


async def ban_chat_sender_chat(token, chat_id, sender_chat_id):
    method_url = 'banChatSenderChat'
    payload = {'chat_id': chat_id, 'sender_chat_id': sender_chat_id}
    return await _process_request(token, method_url, params=payload, method='post')


async def unban_chat_sender_chat(token, chat_id, sender_chat_id):
    method_url = 'unbanChatSenderChat'
    payload = {'chat_id': chat_id, 'sender_chat_id': sender_chat_id}
    return await _process_request(token, method_url, params=payload, method='post')

async def set_chat_permissions(token, chat_id, permissions, use_independent_chat_permissions=None):
    method_url = 'setChatPermissions'
    payload = {
        'chat_id': chat_id,
        'permissions': permissions.to_json()
    }
    if use_independent_chat_permissions is not None:
        payload['use_independent_chat_permissions'] = use_independent_chat_permissions
    return await _process_request(token, method_url, params=payload, method='post')


async def create_chat_invite_link(token, chat_id, name, expire_date, member_limit, creates_join_request):
    method_url = 'createChatInviteLink'
    payload = {
        'chat_id': chat_id
    }

    if expire_date is not None:
        if isinstance(expire_date, datetime):
            payload['expire_date'] = expire_date.timestamp()
        else:
            payload['expire_date'] = expire_date
    if member_limit:
        payload['member_limit'] = member_limit
    if creates_join_request is not None:
        payload['creates_join_request'] = creates_join_request
    if name:
        payload['name'] = name

    return await _process_request(token, method_url, params=payload, method='post')


async def edit_chat_invite_link(token, chat_id, invite_link, name, expire_date, member_limit, creates_join_request):
    method_url = 'editChatInviteLink'
    payload = {
        'chat_id': chat_id,
        'invite_link': invite_link
    }

    if expire_date is not None:
        if isinstance(expire_date, datetime):
            payload['expire_date'] = expire_date.timestamp()
        else:
            payload['expire_date'] = expire_date

    if member_limit is not None:
        payload['member_limit'] = member_limit
    if name:
        payload['name'] = name
    if creates_join_request is not None:
        payload['creates_join_request'] = creates_join_request

    return await _process_request(token, method_url, params=payload, method='post')

async def revoke_chat_invite_link(token, chat_id, invite_link):
    method_url = 'revokeChatInviteLink'
    payload = {
        'chat_id': chat_id,
        'invite_link': invite_link
    }
    return await _process_request(token, method_url, params=payload, method='post')


async def export_chat_invite_link(token, chat_id):
    method_url = 'exportChatInviteLink'
    payload = {'chat_id': chat_id}
    return await _process_request(token, method_url, params=payload, method='post')

async def approve_chat_join_request(token, chat_id, user_id):
    method_url = 'approveChatJoinRequest'
    payload = {
        'chat_id': chat_id,
        'user_id': user_id
    }
    return await _process_request(token, method_url, params=payload, method='post')


async def decline_chat_join_request(token, chat_id, user_id):
    method_url = 'declineChatJoinRequest'
    payload = {
        'chat_id': chat_id,
        'user_id': user_id
    }
    return await _process_request(token, method_url, params=payload, method='post')


async def set_chat_photo(token, chat_id, photo):
    method_url = 'setChatPhoto'
    payload = {'chat_id': chat_id}
    files = None
    if util.is_string(photo):
        payload['photo'] = photo
    elif util.is_pil_image(photo):
        files = {'photo': util.pil_image_to_file(photo)}
    else:
        files = {'photo': photo}
    return await _process_request(token, method_url, params=payload, files=files, method='post')


async def delete_chat_photo(token, chat_id):
    method_url = 'deleteChatPhoto'
    payload = {'chat_id': chat_id}
    return await _process_request(token, method_url, params=payload, method='post')


async def set_chat_title(token, chat_id, title):
    method_url = 'setChatTitle'
    payload = {'chat_id': chat_id, 'title': title}
    return await _process_request(token, method_url, params=payload, method='post')

async def set_my_description(token, description=None, language_code=None):
    method_url = r'setMyDescription'
    payload = {}
    if description is not None:
        payload['description'] = description
    if language_code is not None:
        payload['language_code'] = language_code
    return await _process_request(token, method_url, params=payload, method='post')

async def get_my_description(token, language_code=None):
    method_url = r'getMyDescription'
    payload = {}
    if language_code:
        payload['language_code'] = language_code
    return await _process_request(token, method_url, params=payload)

async def set_my_short_description(token, short_description=None, language_code=None):
    method_url = r'setMyShortDescription'
    payload = {}
    if short_description is not None:
        payload['short_description'] = short_description
    if language_code is not None:
        payload['language_code'] = language_code
    return await _process_request(token, method_url, params=payload, method='post')

async def get_my_short_description(token, language_code=None):
    method_url = r'getMyShortDescription'
    payload = {}
    if language_code:
        payload['language_code'] = language_code
    return await _process_request(token, method_url, params=payload)

async def get_my_commands(token, scope=None, language_code=None):
    method_url = r'getMyCommands'
    payload = {}
    if scope:
        payload['scope'] = scope.to_json()
    if language_code:
        payload['language_code'] = language_code
    return await _process_request(token, method_url, params=payload)


async def set_my_name(token, name=None, language_code=None):
    method_url = r'setMyName'
    payload = {}
    if name is not None:
        payload['name'] = name
    if language_code is not None:
        payload['language_code'] = language_code
    return await _process_request(token, method_url, params=payload, method='post')

async def get_my_name(token, language_code=None):
    method_url = r'getMyName'
    payload = {}
    if language_code is not None:
        payload['language_code'] = language_code
    return await _process_request(token, method_url, params=payload)

async def set_chat_menu_button(token, chat_id=None, menu_button=None):
    method_url = r'setChatMenuButton'
    payload = {}
    if chat_id:
        payload['chat_id'] = chat_id
    if menu_button:
        payload['menu_button'] = menu_button.to_json()

    return await _process_request(token, method_url, params=payload, method='post')

async def get_chat_menu_button(token, chat_id=None):
    method_url = r'getChatMenuButton'
    payload = {}
    if chat_id:
        payload['chat_id'] = chat_id

    return await _process_request(token, method_url, params=payload, method='post')


async def set_my_default_administrator_rights(token, rights=None, for_channels=None):
    method_url = r'setMyDefaultAdministratorRights'
    payload = {}
    if rights:
        payload['rights'] = rights.to_json()
    if for_channels is not None:
        payload['for_channels'] = for_channels

    return await _process_request(token, method_url, params=payload, method='post')

async def get_my_default_administrator_rights(token, for_channels=None):
    method_url = r'getMyDefaultAdministratorRights'
    payload = {}
    if for_channels:
        payload['for_channels'] = for_channels

    return await _process_request(token, method_url, params=payload, method='post')

async def set_my_commands(token, commands, scope=None, language_code=None):
    method_url = r'setMyCommands'
    payload = {'commands': await _convert_list_json_serializable(commands)}
    if scope:
        payload['scope'] = scope.to_json()
    if language_code:
        payload['language_code'] = language_code
    return await _process_request(token, method_url, params=payload, method='post')


async def delete_my_commands(token, scope=None, language_code=None):
    method_url = r'deleteMyCommands'
    payload = {}
    if scope: 
        payload['scope'] = scope.to_json()
    if language_code: 
        payload['language_code'] = language_code
    return await _process_request(token, method_url, params=payload, method='post')


async def set_chat_description(token, chat_id, description):
    method_url = 'setChatDescription'
    payload = {'chat_id': chat_id}
    if description is not None:  # Allow empty strings
        payload['description'] = description
    return await _process_request(token, method_url, params=payload, method='post')


async def pin_chat_message(token, chat_id, message_id, disable_notification=None):
    method_url = 'pinChatMessage'
    payload = {'chat_id': chat_id, 'message_id': message_id}
    if disable_notification is not None:
        payload['disable_notification'] = disable_notification
    return await _process_request(token, method_url, params=payload, method='post')


async def unpin_chat_message(token, chat_id, message_id):
    method_url = 'unpinChatMessage'
    payload = {'chat_id': chat_id}
    if message_id:
        payload['message_id'] = message_id
    return await _process_request(token, method_url, params=payload, method='post')


async def unpin_all_chat_messages(token, chat_id):
    method_url = 'unpinAllChatMessages'
    payload = {'chat_id': chat_id}
    return await _process_request(token, method_url, params=payload, method='post')


# Updating messages

async def edit_message_text(token, text, chat_id=None, message_id=None, inline_message_id=None, parse_mode=None,
                      entities = None, reply_markup=None, link_preview_options=None):
    method_url = r'editMessageText'
    payload = {'text': text}
    if chat_id:
        payload['chat_id'] = chat_id
    if message_id:
        payload['message_id'] = message_id
    if inline_message_id:
        payload['inline_message_id'] = inline_message_id
    if parse_mode:
        payload['parse_mode'] = parse_mode
    if entities:
        payload['entities'] = json.dumps(types.MessageEntity.to_list_of_dicts(entities))
    if reply_markup:
        payload['reply_markup'] = await _convert_markup(reply_markup)
    if link_preview_options is not None:
        payload['link_preview_options'] = link_preview_options.to_json()
    return await _process_request(token, method_url, params=payload, method='post')


async def edit_message_caption(token, caption, chat_id=None, message_id=None, inline_message_id=None,
                         parse_mode=None, caption_entities=None,reply_markup=None):
    method_url = r'editMessageCaption'
    payload = {'caption': caption}
    if chat_id:
        payload['chat_id'] = chat_id
    if message_id:
        payload['message_id'] = message_id
    if inline_message_id:
        payload['inline_message_id'] = inline_message_id
    if parse_mode:
        payload['parse_mode'] = parse_mode
    if caption_entities:
        payload['caption_entities'] = json.dumps(types.MessageEntity.to_list_of_dicts(caption_entities))
    if reply_markup:
        payload['reply_markup'] = await _convert_markup(reply_markup)
    return await _process_request(token, method_url, params=payload, method='post')


async def edit_message_media(token, media, chat_id=None, message_id=None, inline_message_id=None, reply_markup=None):
    method_url = r'editMessageMedia'
    media_json, file = await convert_input_media(media)
    payload = {'media': media_json}
    if chat_id:
        payload['chat_id'] = chat_id
    if message_id:
        payload['message_id'] = message_id
    if inline_message_id:
        payload['inline_message_id'] = inline_message_id
    if reply_markup:
        payload['reply_markup'] = await _convert_markup(reply_markup)
    return await _process_request(token, method_url, params=payload, files=file, method='post' if file else 'get')


async def edit_message_reply_markup(token, chat_id=None, message_id=None, inline_message_id=None, reply_markup=None):
    method_url = r'editMessageReplyMarkup'
    payload = {}
    if chat_id:
        payload['chat_id'] = chat_id
    if message_id:
        payload['message_id'] = message_id
    if inline_message_id:
        payload['inline_message_id'] = inline_message_id
    if reply_markup:
        payload['reply_markup'] = await _convert_markup(reply_markup)
    return await _process_request(token, method_url, params=payload, method='post')


async def delete_message(token, chat_id, message_id, timeout=None):
    method_url = r'deleteMessage'
    payload = {'chat_id': chat_id, 'message_id': message_id}
    if timeout:
        payload['timeout'] = timeout
    return await _process_request(token, method_url, params=payload, method='post')


# Game

async def send_game(
        token, chat_id, game_short_name,
        disable_notification=None,  reply_markup=None, timeout=None,
         protect_content=None, message_thread_id=None,reply_parameters=None):
    method_url = r'sendGame'
    payload = {'chat_id': chat_id, 'game_short_name': game_short_name}
    if disable_notification is not None:
        payload['disable_notification'] = disable_notification
    if reply_parameters is not None:
        payload['reply_parameters'] = json.dumps(reply_parameters.to_dict())
    if reply_markup:
        payload['reply_markup'] = await _convert_markup(reply_markup)
    if timeout:
        payload['timeout'] = timeout
    if protect_content is not None:
        payload['protect_content'] = protect_content
    if message_thread_id:
        payload['message_thread_id'] = message_thread_id
    return await _process_request(token, method_url, params=payload)


# https://core.telegram.org/bots/api#setgamescore
async def set_game_score(token, user_id, score, force=None, disable_edit_message=None, chat_id=None, message_id=None,
                   inline_message_id=None):
    """
    Use this method to set the score of the specified user in a game. On success, if the message was sent by the bot, returns the edited Message, otherwise returns True. Returns an error, if the new score is not greater than the user's current score in the chat.
    :param token: Bot's token (you don't need to fill this)
    :param user_id: User identifier
    :param score: New score, must be non-negative
    :param force: (Optional) Pass True, if the high score is allowed to decrease. This can be useful when fixing mistakes or banning cheaters
    :param disable_edit_message: (Optional) Pass True, if the game message should not be automatically edited to include the current scoreboard
    :param chat_id: (Optional, required if inline_message_id is not specified) Unique identifier for the target chat (or username of the target channel in the format @channelusername)
    :param message_id: (Optional, required if inline_message_id is not specified) Unique identifier of the sent message
    :param inline_message_id: (Optional, required if chat_id and message_id are not specified) Identifier of the inline message
    :return:
    """
    method_url = r'setGameScore'
    payload = {'user_id': user_id, 'score': score}
    if force is not None:
        payload['force'] = force
    if chat_id:
        payload['chat_id'] = chat_id
    if message_id:
        payload['message_id'] = message_id
    if inline_message_id:
        payload['inline_message_id'] = inline_message_id
    if disable_edit_message is not None:
        payload['disable_edit_message'] = disable_edit_message
    return await _process_request(token, method_url, params=payload)


# https://core.telegram.org/bots/api#getgamehighscores
async def get_game_high_scores(token, user_id, chat_id=None, message_id=None, inline_message_id=None):
    """
    Use this method to get data for high score tables. Will return the score of the specified user and several of his neighbors in a game. On success, returns an Array of GameHighScore objects.
    This method will currently return scores for the target user, plus two of his closest neighbors on each side. Will also return the top three users if the user and his neighbors are not among them. Please note that this behavior is subject to change.
    :param token: Bot's token (you don't need to fill this)
    :param user_id: Target user id
    :param chat_id: (Optional, required if inline_message_id is not specified) Unique identifier for the target chat (or username of the target channel in the format @channelusername)
    :param message_id: (Optional, required if inline_message_id is not specified) Unique identifier of the sent message
    :param inline_message_id: (Optional, required if chat_id and message_id are not specified) Identifier of the inline message
    :return:
    """
    method_url = r'getGameHighScores'
    payload = {'user_id': user_id}
    if chat_id:
        payload['chat_id'] = chat_id
    if message_id:
        payload['message_id'] = message_id
    if inline_message_id:
        payload['inline_message_id'] = inline_message_id
    return await _process_request(token, method_url, params=payload)


# Payments (https://core.telegram.org/bots/api#payments)

async def send_invoice(
        token, chat_id, title, description, invoice_payload, provider_token, currency, prices,
        start_parameter = None, photo_url=None, photo_size=None, photo_width=None, photo_height=None,
        need_name=None, need_phone_number=None, need_email=None, need_shipping_address=None,
        send_phone_number_to_provider = None, send_email_to_provider = None, is_flexible=None,
        disable_notification=None,  reply_markup=None, provider_data=None,
        timeout=None,  max_tip_amount=None, suggested_tip_amounts=None,
        protect_content=None, message_thread_id=None,reply_parameters=None):
    """
    Use this method to send invoices. On success, the sent Message is returned.
    :param token: Bot's token (you don't need to fill this)
    :param chat_id: Unique identifier for the target private chat
    :param title: Product name
    :param description: Product description
    :param invoice_payload: Bot-defined invoice payload, 1-128 bytes. This will not be displayed to the user, use for your internal processes.
    :param provider_token: Payments provider token, obtained via @Botfather
    :param currency: Three-letter ISO 4217 currency code, see https://core.telegram.org/bots/payments#supported-currencies
    :param prices: Price breakdown, a list of components (e.g. product price, tax, discount, delivery cost, delivery tax, bonus, etc.)
    :param start_parameter: Unique deep-linking parameter that can be used to generate this invoice when used as a start parameter
    :param photo_url: URL of the product photo for the invoice. Can be a photo of the goods or a marketing image for a service. People like it better when they see what they are paying for.
    :param photo_size: Photo size
    :param photo_width: Photo width
    :param photo_height: Photo height
    :param need_name: Pass True, if you require the user's full name to complete the order
    :param need_phone_number: Pass True, if you require the user's phone number to complete the order
    :param need_email: Pass True, if you require the user's email to complete the order
    :param need_shipping_address: Pass True, if you require the user's shipping address to complete the order
    :param is_flexible: Pass True, if the final price depends on the shipping method
    :param send_phone_number_to_provider: Pass True, if user's phone number should be sent to provider
    :param send_email_to_provider: Pass True, if user's email address should be sent to provider
    :param disable_notification: Sends the message silently. Users will receive a notification with no sound.
    :param reply_markup: A JSON-serialized object for an inline keyboard. If empty, one 'Pay total price' button will be shown. If not empty, the first button must be a Pay button
    :param provider_data: A JSON-serialized data about the invoice, which will be shared with the payment provider. A detailed description of required fields should be provided by the payment provider.
    :param timeout:
    :param max_tip_amount: The maximum accepted amount for tips in the smallest units of the currency
    :param suggested_tip_amounts: A JSON-serialized array of suggested amounts of tips in the smallest units of the currency.
        At most 4 suggested tip amounts can be specified. The suggested tip amounts must be positive, passed in a strictly increased order and must not exceed max_tip_amount.
    :param protect_content: Protects the contents of the sent message from forwarding and saving
    :param message_thread_id: Unique identifier for the target message thread (topic) of the forum; for forum supergroups only
    :return:
    """
    method_url = r'sendInvoice'
    payload = {'chat_id': chat_id, 'title': title, 'description': description, 'payload': invoice_payload,
               'provider_token': provider_token, 'currency': currency,
               'prices': await _convert_list_json_serializable(prices)}
    if start_parameter:
        payload['start_parameter'] = start_parameter
    if photo_url:
        payload['photo_url'] = photo_url
    if photo_size:
        payload['photo_size'] = photo_size
    if photo_width:
        payload['photo_width'] = photo_width
    if photo_height:
        payload['photo_height'] = photo_height
    if need_name is not None:
        payload['need_name'] = need_name
    if need_phone_number is not None:
        payload['need_phone_number'] = need_phone_number
    if need_email is not None:
        payload['need_email'] = need_email
    if need_shipping_address is not None:
        payload['need_shipping_address'] = need_shipping_address
    if send_phone_number_to_provider is not None:
        payload['send_phone_number_to_provider'] = send_phone_number_to_provider
    if send_email_to_provider is not None:
        payload['send_email_to_provider'] = send_email_to_provider
    if is_flexible is not None:
        payload['is_flexible'] = is_flexible
    if disable_notification is not None:
        payload['disable_notification'] = disable_notification
    if reply_parameters is not None:
        payload['reply_parameters'] = json.dumps(reply_parameters.to_dict())
    if reply_markup:
        payload['reply_markup'] = await _convert_markup(reply_markup)
    if provider_data:
        payload['provider_data'] = provider_data
    if timeout:
        payload['timeout'] = timeout
    if max_tip_amount is not None:
        payload['max_tip_amount'] = max_tip_amount
    if suggested_tip_amounts is not None:
        payload['suggested_tip_amounts'] = json.dumps(suggested_tip_amounts)
    if protect_content is not None:
        payload['protect_content'] = protect_content
    if message_thread_id:
        payload['message_thread_id'] = message_thread_id
    return await _process_request(token, method_url, params=payload)


async def answer_shipping_query(token, shipping_query_id, ok, shipping_options=None, error_message=None):
    """
    If you sent an invoice requesting a shipping address and the parameter is_flexible was specified, the Bot API will send an Update with a shipping_query field to the bot. Use this method to reply to shipping queries. On success, True is returned.
    :param token: Bot's token (you don't need to fill this)
    :param shipping_query_id: Unique identifier for the query to be answered
    :param ok: Specify True if delivery to the specified address is possible and False if there are any problems (for example, if delivery to the specified address is not possible)
    :param shipping_options: Required if ok is True. A JSON-serialized array of available shipping options.
    :param error_message: Required if ok is False. Error message in human readable form that explains why it is impossible to complete the order (e.g. "Sorry, delivery to your desired address is unavailable'). Telegram will display this message to the user.
    :return:
    """
    method_url = 'answerShippingQuery'
    payload = {'shipping_query_id': shipping_query_id, 'ok': ok}
    if shipping_options:
        payload['shipping_options'] = await _convert_list_json_serializable(shipping_options)
    if error_message:
        payload['error_message'] = error_message
    return await _process_request(token, method_url, params=payload)


async def answer_pre_checkout_query(token, pre_checkout_query_id, ok, error_message=None):
    """
    Once the user has confirmed their payment and shipping details, the Bot API sends the final confirmation in the form of an Update with the field pre_checkout_query. Use this method to respond to such pre-checkout queries. On success, True is returned. Note: The Bot API must receive an answer within 10 seconds after the pre-checkout query was sent.
    :param token: Bot's token (you don't need to fill this)
    :param pre_checkout_query_id: Unique identifier for the query to be answered
    :param ok: Specify True if everything is alright (goods are available, etc.) and the bot is ready to proceed with the order. Use False if there are any problems.
    :param error_message: Required if ok is False. Error message in human readable form that explains the reason for failure to proceed with the checkout (e.g. "Sorry, somebody just bought the last of our amazing black T-shirts while you were busy filling out your payment details. Please choose a different color or garment!"). Telegram will display this message to the user.
    :return:
    """
    method_url = 'answerPreCheckoutQuery'
    payload = {'pre_checkout_query_id': pre_checkout_query_id, 'ok': ok}
    if error_message:
        payload['error_message'] = error_message
    return await _process_request(token, method_url, params=payload)


async def unpin_all_general_forum_topic_messages(token, chat_id):
    method_url = 'unpinAllGeneralForumTopicMessages'
    payload = {'chat_id': chat_id}
    return await _process_request(token, method_url, params=payload, method='post')

# InlineQuery

async def answer_callback_query(token, callback_query_id, text=None, show_alert=None, url=None, cache_time=None):
    """
    Use this method to send answers to callback queries sent from inline keyboards. The answer will be displayed to the user as a notification at the top of the chat screen or as an alert. On success, True is returned.
    Alternatively, the user can be redirected to the specified Game URL. For this option to work, you must first create a game for your bot via BotFather and accept the terms. Otherwise, you may use links like telegram.me/your_bot?start=XXXX that open your bot with a parameter.
    :param token: Bot's token (you don't need to fill this)
    :param callback_query_id: Unique identifier for the query to be answered
    :param text: (Optional) Text of the notification. If not specified, nothing will be shown to the user, 0-200 characters
    :param show_alert: (Optional) If true, an alert will be shown by the client instead of a notification at the top of the chat screen. Defaults to false.
    :param url: (Optional) URL that will be opened by the user's client. If you have created a Game and accepted the conditions via @Botfather, specify the URL that opens your game – note that this will only work if the query comes from a callback_game button.
    Otherwise, you may use links like telegram.me/your_bot?start=XXXX that open your bot with a parameter.
    :param cache_time: (Optional) The maximum amount of time in seconds that the result of the callback query may be cached client-side. Telegram apps will support caching starting in version 3.14. Defaults to 0.
    :return:
    """
    method_url = 'answerCallbackQuery'
    payload = {'callback_query_id': callback_query_id}
    if text:
        payload['text'] = text
    if show_alert is not None:
        payload['show_alert'] = show_alert
    if url:
        payload['url'] = url
    if cache_time is not None:
        payload['cache_time'] = cache_time
    return await _process_request(token, method_url, params=payload, method='post')

async def get_user_chat_boosts(token, chat_id, user_id):
    method_url = 'getUserChatBoosts'
    payload = {'chat_id': chat_id, 'user_id': user_id}
    return await _process_request(token, method_url, params=payload)

async def answer_inline_query(token, inline_query_id, results, cache_time=None, is_personal=None, next_offset=None,
                        button=None):
    method_url = 'answerInlineQuery'
    payload = {'inline_query_id': inline_query_id, 'results': await _convert_list_json_serializable(results)}
    if cache_time is not None:
        payload['cache_time'] = cache_time
    if is_personal is not None:
        payload['is_personal'] = is_personal
    if next_offset is not None:
        payload['next_offset'] = next_offset
    if button is not None:
        payload["button"] = button.to_json()
    

    return await _process_request(token, method_url, params=payload, method='post')


async def get_sticker_set(token, name):
    method_url = 'getStickerSet'
    return await _process_request(token, method_url, params={'name': name})

async def get_custom_emoji_stickers(token, custom_emoji_ids):
    method_url = r'getCustomEmojiStickers'
    return await _process_request(token, method_url, params={'custom_emoji_ids': json.dumps(custom_emoji_ids)})

async def set_sticker_keywords(token, sticker, keywords=None):
    method_url = 'setStickerKeywords'
    payload = {'sticker': sticker}
    if keywords:
        payload['keywords'] = json.dumps(keywords)

    return await _process_request(token, method_url, params=payload, method='post')

async def set_sticker_mask_position(token, sticker, mask_position=None):
    method_url = 'setStickerMaskPosition'
    payload = {'sticker': sticker}
    if mask_position:
        payload['mask_position'] = mask_position.to_json()
    return await _process_request(token, method_url, params=payload, method='post')

async def upload_sticker_file(token, user_id, sticker, sticker_format):
    method_url = 'uploadStickerFile'
    payload = {'user_id': user_id, 'sticker_format': sticker_format}
    files = {'sticker': sticker}
    return await _process_request(token, method_url, params=payload, files=files, method='post')

async def set_sticker_emoji_list(token, sticker, emoji_list):
    method_url = 'setStickerEmojiList'
    payload = {'sticker': sticker, 'emoji_list': json.dumps(emoji_list)}
    return await _process_request(token, method_url, params=payload, method='post')

async def delete_sticker_set(token, name):
    method_url = 'deleteStickerSet'
    payload = {'name': name}
    return await _process_request(token, method_url, params=payload, method='post')

async def set_custom_emoji_sticker_set_thumbnail(token, name, custom_emoji_id=None):
    method_url = 'setCustomEmojiStickerSetThumbnail'
    payload = {'name': name}
    if custom_emoji_id is not None:
        payload['custom_emoji_id'] = custom_emoji_id
    return await _process_request(token, method_url, params=payload, method='post')


async def set_sticker_set_title(token, name, title):
    method_url = 'setStickerSetTitle'
    payload = {'name': name, 'title': title}
    return await _process_request(token, method_url, params=payload, method='post')

async def create_new_sticker_set(
        token, user_id, name, title, stickers, sticker_format, sticker_type=None, needs_repainting=None):
    method_url = 'createNewStickerSet'
    payload = {'user_id': user_id, 'name': name, 'title': title, 'sticker_format': sticker_format}
    if sticker_type:
        payload['sticker_type'] = sticker_type
    if needs_repainting:
        payload['needs_repainting'] = needs_repainting

    files = {}
    lst = []

    for sticker in stickers:
        json_dict, file = sticker.convert_input_sticker()
        json_dict = sticker.to_dict()

        if file:
            list_keys = list(file.keys())
            files[list_keys[0]] = file[list_keys[0]]
        lst.append(json_dict)
    
    payload['stickers'] = json.dumps(lst)

    
    return await _process_request(token, method_url, params=payload, files=files, method='post')


async def add_sticker_to_set(token, user_id, name, sticker):
    method_url = 'addStickerToSet'
    json_dict, files = sticker.convert_input_sticker()
    payload = {'user_id': user_id, 'name': name, 'sticker': json_dict}
    

    return await _process_request(token, method_url, params=payload, files=files, method='post')


async def set_sticker_position_in_set(token, sticker, position):
    method_url = 'setStickerPositionInSet'
    payload = {'sticker': sticker, 'position': position}
    return await _process_request(token, method_url, params=payload, method='post')


async def delete_sticker_from_set(token, sticker):
    method_url = 'deleteStickerFromSet'
    payload = {'sticker': sticker}
    return await _process_request(token, method_url, params=payload, method='post')



async def create_invoice_link(token, title, description, payload, provider_token,
            currency, prices, max_tip_amount=None, suggested_tip_amounts=None, provider_data=None,
            photo_url=None, photo_size=None, photo_width=None, photo_height=None, need_name=None, need_phone_number=None,
            need_email=None, need_shipping_address=None, send_phone_number_to_provider=None,
            send_email_to_provider=None, is_flexible=None):
    method_url = r'createInvoiceLink'
    payload = {'title': title, 'description': description, 'payload': payload, 'provider_token': provider_token,
                'currency': currency, 'prices': await _convert_list_json_serializable(prices)}
    if max_tip_amount:
        payload['max_tip_amount'] = max_tip_amount
    if suggested_tip_amounts:
        payload['suggested_tip_amounts'] = json.dumps(suggested_tip_amounts)
    if provider_data:
        payload['provider_data'] = provider_data
    if photo_url:
        payload['photo_url'] = photo_url
    if photo_size:
        payload['photo_size'] = photo_size
    if photo_width:
        payload['photo_width'] = photo_width
    if photo_height:
        payload['photo_height'] = photo_height
    if need_name is not None:
        payload['need_name'] = need_name
    if need_phone_number is not None:
        payload['need_phone_number'] = need_phone_number
    if need_email is not None:
        payload['need_email'] = need_email
    if need_shipping_address is not None:
        payload['need_shipping_address'] = need_shipping_address
    if send_phone_number_to_provider is not None:
        payload['send_phone_number_to_provider'] = send_phone_number_to_provider
    if send_email_to_provider is not None:
        payload['send_email_to_provider'] = send_email_to_provider
    if is_flexible is not None:
        payload['is_flexible'] = is_flexible
    return await _process_request(token, method_url, params=payload, method='post')



# noinspection PyShadowingBuiltins
async def send_poll(
        token, chat_id,
        question, options,
        is_anonymous = None, type = None, allows_multiple_answers = None, correct_option_id = None,
        explanation = None, explanation_parse_mode=None, open_period = None, close_date = None, is_closed = None,
        disable_notification=False,  
        reply_markup=None, timeout=None, explanation_entities=None, protect_content=None, message_thread_id=None,reply_parameters=None):
    method_url = r'sendPoll'
    payload = {
        'chat_id': str(chat_id),
        'question': question,
        'options': json.dumps(await _convert_poll_options(options))}

    if is_anonymous is not None:
        payload['is_anonymous'] = is_anonymous
    if type is not None:
        payload['type'] = type
    if allows_multiple_answers is not None:
        payload['allows_multiple_answers'] = allows_multiple_answers
    if correct_option_id is not None:
        payload['correct_option_id'] = correct_option_id
    if explanation is not None:
        payload['explanation'] = explanation
    if explanation_parse_mode is not None:
        payload['explanation_parse_mode'] = explanation_parse_mode
    if open_period is not None:
        payload['open_period'] = open_period
    if close_date is not None:
        if isinstance(close_date, datetime):
            payload['close_date'] = close_date.timestamp()
        else:
            payload['close_date'] = close_date
    if is_closed is not None:
        payload['is_closed'] = is_closed

    if disable_notification:
        payload['disable_notification'] = disable_notification
    if reply_parameters is not None:
        payload['reply_parameters'] = json.dumps(reply_parameters.to_dict())
    if reply_markup is not None:
        payload['reply_markup'] = await _convert_markup(reply_markup)
    if timeout:
        payload['timeout'] = timeout
    if explanation_entities:
        payload['explanation_entities'] = json.dumps(
            types.MessageEntity.to_list_of_dicts(explanation_entities))
    if protect_content:
        payload['protect_content'] = protect_content
    if message_thread_id:
        payload['message_thread_id'] = message_thread_id
    return await _process_request(token, method_url, params=payload)


async def create_forum_topic(token, chat_id, name, icon_color=None, icon_custom_emoji_id=None):
    method_url = r'createForumTopic'
    payload = {'chat_id': chat_id, 'name': name}
    if icon_color:
        payload['icon_color'] = icon_color
    if icon_custom_emoji_id:
        payload['icon_custom_emoji_id'] = icon_custom_emoji_id
    return await _process_request(token, method_url, params=payload)

async def edit_forum_topic(token, chat_id, message_thread_id, name=None, icon_custom_emoji_id=None):
    method_url = r'editForumTopic'
    payload = {'chat_id': chat_id, 'message_thread_id': message_thread_id}
    if name is not None:
        payload['name'] = name
    if icon_custom_emoji_id is not None:
        payload['icon_custom_emoji_id'] = icon_custom_emoji_id
    return await _process_request(token, method_url, params=payload)

async def close_forum_topic(token, chat_id, message_thread_id):
    method_url = r'closeForumTopic'
    payload = {'chat_id': chat_id, 'message_thread_id': message_thread_id}
    return await _process_request(token, method_url, params=payload)

async def reopen_forum_topic(token, chat_id, message_thread_id):
    method_url = r'reopenForumTopic'
    payload = {'chat_id': chat_id, 'message_thread_id': message_thread_id}
    return await _process_request(token, method_url, params=payload)

async def delete_forum_topic(token, chat_id, message_thread_id):
    method_url = r'deleteForumTopic'
    payload = {'chat_id': chat_id, 'message_thread_id': message_thread_id}
    return await _process_request(token, method_url, params=payload)

async def unpin_all_forum_topic_messages(token, chat_id, message_thread_id):
    method_url = r'unpinAllForumTopicMessages'
    payload = {'chat_id': chat_id, 'message_thread_id': message_thread_id}
    return await _process_request(token, method_url, params=payload)

async def get_forum_topic_icon_stickers(token):
    method_url = r'getForumTopicIconStickers'
    return await _process_request(token, method_url)

async def edit_general_forum_topic(token, chat_id, name):
    method_url = r'editGeneralForumTopic'
    payload = {'chat_id': chat_id, 'name': name}
    return await _process_request(token, method_url, params=payload)

async def close_general_forum_topic(token, chat_id):
    method_url = r'closeGeneralForumTopic'
    payload = {'chat_id': chat_id}
    return await _process_request(token, method_url, params=payload)

async def reopen_general_forum_topic(token, chat_id):
    method_url = r'reopenGeneralForumTopic'
    payload = {'chat_id': chat_id}
    return await _process_request(token, method_url, params=payload)

async def hide_general_forum_topic(token, chat_id):
    method_url = r'hideGeneralForumTopic'
    payload = {'chat_id': chat_id}
    return await _process_request(token, method_url, params=payload)

async def unhide_general_forum_topic(token, chat_id):
    method_url = r'unhideGeneralForumTopic'
    payload = {'chat_id': chat_id}
    return await _process_request(token, method_url, params=payload)

async def delete_messages(token, chat_id, message_ids):
    method_url = 'deleteMessages'
    payload = {
        'chat_id': chat_id,
        'message_ids': json.dumps(message_ids)
    }
    return await _process_request(token, method_url, params=payload)

async def forward_messages(token, chat_id, from_chat_id, message_ids, disable_notification=None,
                            message_thread_id=None, protect_content=None):
    method_url = 'forwardMessages'
    payload = {
        'chat_id': chat_id,
        'from_chat_id': from_chat_id,
        'message_ids': json.dumps(message_ids),
    }
    if disable_notification is not None:
        payload['disable_notification'] = disable_notification
    if message_thread_id is not None:
        payload['message_thread_id'] = message_thread_id
    if protect_content is not None:
        payload['protect_content'] = protect_content
    
    result = await _process_request(token, method_url, params=payload)
    return result

async def copy_messages(token, chat_id, from_chat_id, message_ids, disable_notification=None,
                        message_thread_id=None, protect_content=None, remove_caption=None):
    method_url = 'copyMessages'
    payload = {
        'chat_id': chat_id,
        'from_chat_id': from_chat_id,
        'message_ids': json.dumps(message_ids),
    }
    if disable_notification is not None:
        payload['disable_notification'] = disable_notification
    if message_thread_id is not None:
        payload['message_thread_id'] = message_thread_id
    if protect_content is not None:
        payload['protect_content'] = protect_content
    if remove_caption is not None:
        payload['remove_caption'] = remove_caption
    
    result = await _process_request(token, method_url, params=payload)
    return result


async def _convert_list_json_serializable(results):
    ret = ''
    for r in results:
        if isinstance(r, types.JsonSerializable):
            ret = ret + r.to_json() + ','
    if len(ret) > 0:
        ret = ret[:-1]
    return '[' + ret + ']'



async def _convert_entites(entites):
    if entites is None:
        return None
    elif len(entites) == 0:
        return []
    elif isinstance(entites[0], types.JsonSerializable):
        return [entity.to_json() for entity in entites]
    else:
        return entites


async def _convert_poll_options(poll_options):
    if poll_options is None:
        return None
    elif len(poll_options) == 0:
        return []
    elif isinstance(poll_options[0], str):
        # Compatibility mode with previous bug when only list of string was accepted as poll_options
        return poll_options
    elif isinstance(poll_options[0], types.PollOption):
        return [option.text for option in poll_options]
    else:
        return poll_options


async def convert_input_media(media):
    if isinstance(media, types.InputMedia):
        return media.convert_input_media()
    return None, None


async def convert_input_media_array(array):
    media = []
    files = {}
    for input_media in array:
        if isinstance(input_media, types.InputMedia):
            media_dict = input_media.to_dict()
            if media_dict['media'].startswith('attach://'):
                key = media_dict['media'].replace('attach://', '')
                files[key] = input_media.media
            media.append(media_dict)
    return json.dumps(media), files


async def _no_encode(func):
    def wrapper(key, val):
        if key == 'filename':
            return u'{0}={1}'.format(key, val)
        else:
            return func(key, val)

    return wrapper

async def stop_poll(token, chat_id, message_id, reply_markup=None):
    method_url = r'stopPoll'
    payload = {'chat_id': str(chat_id), 'message_id': message_id}
    if reply_markup:
        payload['reply_markup'] = await _convert_markup(reply_markup)
    return await _process_request(token, method_url, params=payload)

# exceptions
class ApiException(Exception):
    """
    This class represents a base Exception thrown when a call to the Telegram API fails.
    In addition to an informative message, it has a `function_name` and a `result` attribute, which respectively
    contain the name of the failed function and the returned result that made the function to be considered  as
    failed.
    """

    def __init__(self, msg, function_name, result):
        super(ApiException, self).__init__("A request to the Telegram API was unsuccessful. {0}".format(msg))
        self.function_name = function_name
        self.result = result
    
class ApiHTTPException(ApiException):
    """
    This class represents an Exception thrown when a call to the 
    Telegram API server returns HTTP code that is not 200.
    """
    def __init__(self, function_name, result: aiohttp.ClientResponse):
        super(ApiHTTPException, self).__init__(
            "The server returned HTTP {0} {1}. Response body:\n[{2}]" \
            .format(result.status, result.reason, result.request_info),
            function_name,
            result)
    
class ApiInvalidJSONException(ApiException):
    """
    This class represents an Exception thrown when a call to the 
    Telegram API server returns invalid json.
    """
    def __init__(self, function_name, result):
        super(ApiInvalidJSONException, self).__init__(
            "The server returned an invalid JSON response. Response body:\n[{0}]" \
            .format(result),
            function_name,
            result)
    
class ApiTelegramException(ApiException):
    """
    This class represents an Exception thrown when a Telegram API returns error code.
    """
    def __init__(self, function_name, result, result_json):
        super(ApiTelegramException, self).__init__(
            "Error code: {0}. Description: {1}" \
            .format(result_json['error_code'], result_json['description']),
            function_name,
            result)
        self.result_json = result_json
        self.error_code = result_json['error_code']
        self.description = result_json['description']

class RequestTimeout(Exception):
    """
    This class represents a request timeout.
    """
    pass