Fix RefResolutionError

✅ Solution

RefResolutionError in PyTorch FX usually arises when tracing a module and the tracer encounters a symbol (e.g., a function or module) it cannot resolve within the FX graph's scope. To fix this, either make sure all necessary modules/functions are explicitly passed as arguments or attributes of the module being traced, or use `torch.fx.wrap` to expose external functions/modules to the tracer. Consider tracing at a higher level or restructuring your code to improve traceability if the problem persists.