def get_service_id_to_country_mapping(self) -> dict:
    """Get collection of service id to country details [serviceId,
    saasId, country, countryCode, org, saasAppName, displayName,
    priority] mapping.

    .. list-table::
        :header-rows: 1

        * - Swagger Section
          - Method
          - Endpoint
        * - spPortal
          - GET
          - /spPortal/internetDb/serviceIdToSaasId/countries

    :return: Dictionary of countries, with nested list of attributes \n
        * keyword **<country_name>** (`list[str]`): Country name,
          underlying list of attributes \n
            * [0] (`str`): Service ID number
            * [1] (`str`): SaaS ID number
            * [2] (`str`): Country
            * [3] (`str`): Country code
            * [4] (`str`): Organization
            * [5] (`str`): SaaS application name
            * [6] (`str`): Display name
            * [7] (`str`): Priority number
    :rtype: dict
    """
    return self._get("/spPortal/internetDb/serviceIdToSaasId/countries")