Plugin Framework: can blocks be marked as required?

I am migrating the resources from sdk v2 to the new plugin framework. In the plugin framework there is no way to specify a block as required while in sdk v2 I was able to do that. This causes all the blocks to be shown as optional when the documentation for the resource/data source is generated using the tf-plugin-docs tool. Is there a way to overcome this? We have certain blocks which need to be marked as required. Can’t change to nested attributes as it has to be backwards compatible.

For others reading, this thread is continuing along in the Plugin Development category: Plugin Framework: Blocks don't have required field