An error to raise when required internal API cannot be accessed (anymore).
Raising this exception will help to identify issues on CKEditor 5 upgrade,
where the internal API changed.
Note that when raising this exception, thus, relying on internal API,
it is best guarded by a comment to a corresponding issue, so that we
get rid of internal API usages eventually.
An error to raise when required internal API cannot be accessed (anymore).
Raising this exception will help to identify issues on CKEditor 5 upgrade, where the internal API changed.
Note that when raising this exception, thus, relying on internal API, it is best guarded by a comment to a corresponding issue, so that we get rid of internal API usages eventually.