def wasb_write(self, log, remote_log_location, append=True):
        """
        
        """
        if append and self.wasb_log_exists(remote_log_location):
            old_log = self.wasb_read(remote_log_location)
            log = '\n'.join([old_log, log]) if old_log else log

        try:
            self.hook.load_string(
                log,
                self.wasb_container,
                remote_log_location,
            )
        except AzureHttpError:
            self.log.exception('Could not write logs to %s',
                               remote_log_location)