setscriptable

Stores a scriptable override for a Roblox property in the scriptable override cache and returns the previous scriptable state. The first argument must be Instance object, the second argument must be a string property name, and the third argument must be boolean. If a cache entry already exists for the same instance reference and property name, the cached scriptable value is replaced and the old cached value is returned. On a cache miss, the property name is resolved with Roblox property metadata and the Instance class descriptor. If no descriptor exists, or the resolved field is missing or is not a property entry, the function returns nil. When a property entry is found, the function reads scriptable state, stores the requested boolean plus the property reference in scriptable override cache, and returns the previous scriptable state value. The GameIndexHook and GameNewIndexHook later use this cache by temporarily setting the property field scriptable flag for a single indexed read or write, then restoring the previous field flag.