fix RModel codegen bug in infer function signature, thanks to Aaradhya and Federico (#8636)
fix RModel codegen bug in infer function signature, thanks to Aaradhya and Federico (#8636)


olifre/root,olifre/root,olifre/root,olifre/root,olifre/root,olifre/root,olifre/root,olifre/root,olifre/root,olifre/root,olifre/root