Client Initiated Backchannel Authentication (CIBA) equivalent to DeviceAuthorizationGrant API on Client

[FinHorsley]

Hi all, new to the project so apologies if i've missed something obvious

Does the Client expose an api for CIBA? something equivalent to the deviceAuthorization method? e.g.

import { Issuer } from 'openid-client';

const issuer = await Issuer.discover(...);

const client = new issuer.Client({...});

const handle = await client.backChannelAuthorization(); //example

const tokenSet = await handle.poll();

[panva]

https://github.com/panva/openid-client/releases/tag/v6.2.0 added support for CIBA