'Merge scheme of authentication'

def merge_authentication_scheme(self, **kwargs):

    authen_scheme_name = kwargs['authen_scheme_name']
    first_authen_mode = kwargs['first_authen_mode']
    module = kwargs['module']
    conf_str = (CE_MERGE_AUTHENTICATION_SCHEME % (authen_scheme_name, first_authen_mode))
    xml = self.netconf_set_config(module=module, conf_str=conf_str)
    if ('<ok/>' not in xml):
        module.fail_json(msg='Error:    Merge    authentication    scheme    failed.')
    cmds = []
    cmd = ('authentication-scheme    %s' % authen_scheme_name)
    cmds.append(cmd)
    cmd = ('authentication-mode    %s' % first_authen_mode)
    cmds.append(cmd)
    return cmds
