'rollback filename'

def rollback_filename(self):

    cfg_xml = ''
    self.updates_cmd.append(('rollback    configuration    to    file    %s' % self.filename))
    cfg_xml = (CE_NC_ACTION_ROLLBACK_FILE % self.filename)
    recv_xml = execute_nc_action(self.module, cfg_xml)
    self.check_response(recv_xml, 'ROLLBACK_FILENAME')
    self.changed = True
