export const function is declared but its value is never read

[Jojoshua]

Describe the bug

I've highlighted the important parts to explain the issue but basically trying to add type definition to an exported const function throws a ts error. This is similar to #2268 but doesn't involve bindings.
 

Reproduction

app.ts

export type CommonFunction = () => void;

App.svelte

<script lang="ts">
    import type { CommonFunction } from "$lib/app";

    export interface Props {
      name?: string;
    }

    let { name = "world" }: Props = $props();

    export const MyFunction2: CommonFunction = () =>{
      console.log("Hello from MyFunction!");
    }

  </script>

Expected behaviour

No errors are thrown for any exports

System Info

• OS: [e.g. Windows]
• IDE: [e.g. VSCode, Atom]

Which package is the issue about?

No response

Additional Information, eg. Screenshots

Note adding //@ts-ignore silences the error, everything does work but would rather not ignore all these errors