tf_name_to_mlir_name_, function_name_uniquifier_,
                          conversion_metadata.function_name);

    std::unique_ptr<FunctionBody> fbody;
    TF_RETURN_IF_ERROR(
        FunctionDefToBodyHelper(*func_def, AttrSlice(), &graph_flib_, &fbody));
    TF_RETURN_IF_ERROR(importer.PrepareConvert(*fbody->graph));

    TF_ASSIGN_OR_RETURN(auto func_type, importer.InferLibFunctionType(*fbody));