Rust: How do I return a list<string>?

Given .wit like this

```wit
package example:q

world test {
export hello: func() -> list;
}
```

and impl in rs:

```rs
wit_bindgen::generate!({
world: "test",
});

struct Test;

impl Guest for Test {
fn hello() -> Vec {
vec!["hello".to_string(), "world".to_string()]
}
}
export!(test);
```

When I debug, the result is an empty array. Tried basically the same thing as above in this sample https://github.com/microsoft/vscode-extension-samples/tree/main/wasm-component-model w/ the same result.

I feel like I'm missing something fundamental here.