code: async def set_webhook(self, url: base.String,
                            certificate: typing.Union[base.InputFile, None] = None,
                            max_connections: typing.Union[base.Integer, None] = None,
                            allowed_updates: typing.Union[typing.List[base.String], None] = None) -> base.Boolean:
          
          allowed_updates = prepare_arg(allowed_updates)
          payload = generate_payload(**locals(), exclude=['certificate'])
  
          files = {}
          prepare_file(payload, files, 'certificate', certificate)
  
          result = await self.request(api.Methods.SET_WEBHOOK, payload, files)
          return result
docs: Use this method to specify a url and receive incoming updates via an outgoing webhook.
          Whenever there is an update for the bot, we will send an HTTPS POST request to the specified url,
          containing a JSON-serialized Update. In case of an unsuccessful request,
          we will give up after a reasonable amount of attempts.
  
          Source: https://core.telegram.org/bots/api#setwebhook
  
          :param url: HTTPS url to send updates to. Use an empty string to remove webhook integration
          :type url: :obj:`base.String`
          :param certificate: Upload your public key certificate so that the root certificate in use can be checked
          :type certificate: :obj:`typing.Union[base.InputFile, None]`
          :param max_connections: Maximum allowed number of simultaneous HTTPS connections to the webhook
              for update delivery, 1-100.
          :type max_connections: :obj:`typing.Union[base.Integer, None]`
          :param allowed_updates: List the types of updates you want your bot to receive
          :type allowed_updates: :obj:`typing.Union[typing.List[base.String], None]`
          :return: Returns true
          :rtype: :obj:`base.Boolean`