Support for Spengo auth scheme support for netty HttpClient similar to Apache HttpClient

Question

We need to connect to some component via proxy, and this proxy works by kerberos auth. We need to do something like below:

credsProvider.setCredentials(new AuthScope(null, -1, null), use_jaas_creds);
Registry authSchemeRegistry = RegistryBuilder.create().register(AuthSchemes.SPNEGO, new SPNegoSchemeFactory(true)).build();
CloseableHttpClient httpclient = HttpClients.custom()
// set our proxy - httpclient doesn't use ProxySelector
.setRoutePlanner(new DefaultProxyRoutePlanner(proxy))
.setDefaultAuthSchemeRegistry(authSchemeRegistry)
.setDefaultCredentialsProvider(creds).build();```

We are not seeing any solution to run something like above

Expecting to have Spengo support with netty HttpClient