find transport according to transport ID.
        :param tid: transport id
        :return: the transport if found or None if not found

def find_transport(tid=None):
        """
        find transport according to transport ID.
        :param tid: transport id
        :return: the transport if found or None if not found
        """
        LOGGER.debug("TransportService.find_transport")
        ret = None
        if tid is None or not tid:
            raise exceptions.ArianeCallParametersError('id')

        params = SessionService.complete_transactional_req({
            'ID': tid
        })

        if MappingService.driver_type != DriverFactory.DRIVER_REST:
            params['OPERATION'] = 'getTransport'
            args = {'properties': params}
        else:
            args = {'http_operation': 'GET', 'operation_path': 'get', 'parameters': params}

        response = TransportService.requester.call(args)

        if MappingService.driver_type != DriverFactory.DRIVER_REST:
            response = response.get()

        if response.rc == 0:
            ret = Transport.json_2_transport(response.response_content)
        elif response.rc != 404:
            err_msg = 'TransportService.find_transport - Problem while searching transport (id:' + str(tid) + '). ' + \
                      'Reason: ' + str(response.response_content) + ' - ' + str(response.error_message) + \
                      " (" + str(response.rc) + ")"
            LOGGER.warning(err_msg)
            if response.rc == 500 and ArianeMappingOverloadError.ERROR_MSG in response.error_message:
                raise ArianeMappingOverloadError("Transport.find_transport",
                                                 ArianeMappingOverloadError.ERROR_MSG)
            # traceback.print_stack()
        return ret