How can i import modules from custom.js

[yangg]

I want to add a function to custom.js like below

import { open } from '@tauri-apps/api/dialog';

async function openDialog(options) {
  // Open a selection dialog for directories
  const selected = await open(options);
  return selected
}

But it failed to work, as custom.js is not packed by rollup, it cannot resolve import

and I run the follow command to pack it.
rollup src-tauri/src/inject/custom.src.mjs --file src-tauri/src/inject/custom.x.js --format iife --watch
rollup report error

Unresolved dependencies
@tauri-apps/api/dialog (imported by "src-tauri/src/inject/custom.src.mjs")