How to serialize/deserialize Vec<Event> in actix-web?

It seems that there is no `impl Responder for Vec<Event>` nor `impl FromRequest for Vec<Event>`  in actix feature, but I did find `Vec<Event>` support in reqwest feature.
Did I miss any thing?

Here's the code:
```rust
#[get("/test")]
async fn test(events: Vec<Event>) -> Result<Vec<Event>> {
    Ok(events)
}
```