@manzoorwanijk I'm trying to do the same as #70838 for the registry-provider section. Is there a source you used for the official types? My main concern are functions like resolveSelect and getResolveSelectors. At present, they're untyped and appear to be optional as a result, but the code seems to assume that they are present.

There are also some conflicting functions like useDispatch() supposedly returning useRegistry().dispatch while having an incompatible type.

There's also the undefined/unknown vs throwing something issue - adding types to these functions will break pretty much everything that references the @wordpress/data package.

(If this counts as stepping on toes, I'll drop it - I haven't done much beyond porting some work I did a while ago for some stuff I was testing)