You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: async.rs
    path of file: ./repos/wasmtime/tests/all/component_model
    
    the code of the file until where you have to start completion: #![cfg(not(miri))]

use crate::async_functions::{execute_across_threads, PollOnce};
use anyhow::Result;
use wasmtime::component::*;
use wasmtime::{Engine, Store, StoreContextMut, Trap};
use wasmtime_component_util::REALLOC_AND_FREE;

/// This is super::func::thunks, except with an async sto
    
async fn smoke_func_wrap() -> Result<()> {
    let component = r#"
        (component
            (type $f (func))
            (import "i" (func $f))

            (core module $m
                (import "imports" "i" (func $i))
                (func (export "thunk") call $i)
            )

            (core func $f (canon lower (func $f)))
            (core instance $i (instantiate $m
                (with "imports" (instance
                    (export "i" (func $f))
                ))
             ))
            (func (export "thunk")
                (canon lift (core func $i "thunk"))
            )
        )
    "#;

    let engine = super::async_engine();
    let component = Component::new(&engine, component)?;
    let mut store = Store::new(&engine, ());
    let mut linker = Linker::new(&engine);
    let mut root = linker.root();
    root.func_wrap_async("i", |_: StoreContextMut<()>, _: ()| {
        Box::new(async { Ok(()) })
    })?;

    let instance = linker.instantiate_async(&mut store, &component).await?;

    let thunk = instance.get_typed_func::<(), ()>(&mut store, "thunk")?;

    thunk.call_async(&mut store, ()).await?;
    thunk.post_return_async(&mut store).await?;

    Ok(())
}