fixup into remove stable functions

src/compiler/rust/canister/src/ic/stable_write.rs

@@ -4,7 +4,7 @@ pub struct NativeFunction;
 impl JsFn for NativeFunction {
     fn call(context: &mut Context, this_val: JsValue, argv: &[JsValue]) -> JsValue {
         let offset_string = if let JsValue::String(js_string) = argv.get(0).unwrap() {
-            js_string.to_string()
+            js_string.to_string() // TODO it would be great to have a direct conversion to u64 but seems the bindings don't support it
         } else {
             panic!("conversion from JsValue to JsString failed")
         };