Template_lock on Generateblocks

Hello,

I found this video that shows how template_lock prop can be made more powerfull by using core/group block to allow a section in the locked template where one wants to allow for “not locked”, adding removing, moving blocks etc.

So, this sounds awsome to prevent layout destruction by clients. However, I would love to use GB container block instead of core/group. Looking within the generateblocks/src/blocks folder I do not see block.json such that can be found in core/blocks to see if this is possible.

Is template_lock supported by generateblocks container block? Is there any documentation on this?

Thanks