You've posted in the user-to-user forum for Lightroom Classic, and I'm pretty sure there's no one participating in this community who have extensive development experience with the Lightroom (cloud) API.
In the past, I've looked for where to post issues about the LR Cloud API and didn't see anything official. In general, as with most of the SDKs, the developers don't seem very responsive. You could try posting in the official feedback forum for Lightroom Desktop (Cloud-based). About five months ago, a developer responded once to one of my queries about the LR Cloud API.
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