Describe the feature request

Flow doesn't have support for typing arbitrary data-* props. This requires RSD to add Meta-specific data-* props on an as-needed basis, and each time it is considered a "blocker" by the team migrating components to RSD. This creates incentives to either 1) patch internally generated RSD syncs with new Flow types (complicates syncs, can cause regressions), or 2) add Meta-specific props to the OSS project code (doesn't scale to other users).

cc @jbrown215 who had ideas on how to support this from the Flow side