code: def create(cls, monetary_account_paying_id, request_id,
                 maximum_amount_per_month, custom_headers=None):
          
  
          if custom_headers is None:
              custom_headers = {}
  
          request_map = {
              cls.FIELD_MONETARY_ACCOUNT_PAYING_ID: monetary_account_paying_id,
              cls.FIELD_REQUEST_ID: request_id,
              cls.FIELD_MAXIMUM_AMOUNT_PER_MONTH: maximum_amount_per_month
          }
          request_map_string = converter.class_to_json(request_map)
          request_map_string = cls._remove_field_for_request(request_map_string)
  
          api_client = client.ApiClient(cls._get_api_context())
          request_bytes = request_map_string.encode()
          endpoint_url = cls._ENDPOINT_URL_CREATE.format(cls._determine_user_id())
          response_raw = api_client.post(endpoint_url, request_bytes,
                                         custom_headers)
  
          return BunqResponseInt.cast_from_bunq_response(
              cls._process_for_id(response_raw)
          )
docs: Create a new SDD whitelist entry.
  
          :type user_id: int
          :param monetary_account_paying_id: ID of the monetary account of which
          you want to pay from.
          :type monetary_account_paying_id: int
          :param request_id: ID of the request for which you want to whitelist the
          originating SDD.
          :type request_id: int
          :param maximum_amount_per_month: The maximum amount of money that is
          allowed to be deducted based on the whitelist.
          :type maximum_amount_per_month: object_.Amount
          :type custom_headers: dict[str, str]|None
  
          :rtype: BunqResponseInt