[Exist-open] Updating app for compatibility with exist 5+

[Hayim L. <hl...@um...>]

Hello all,
Updating an app to make it compatible with version 5+.
Encountering error on importing: http://exist-db.org/xquery/httpclient
Am guessing that this has to do with this shift
<https://gitlab.gwdg.de/SADE/SADE/-/issues/87> to expath httpc (
http://expath.org/ns/http-client).

Can anyone point to a worked solution I can imitate?

Many thanks,
HL