How to get the returned middleware of middleware::from_fn(...)?

[kukuro-kt]

I'm writing a lib to provide some general middlewares.

I wrote a middleware function like this:

pub async fn error_handler(
    service_request: ServiceRequest, next: Next<impl MessageBody>,
) -> Result<ServiceResponse<impl MessageBody>, Error>{
  //...
}

Others can use this by

.wrap(
  actix_web_lab::middleware::from_fn(mylib::error_handler)
)

However it's inconvenience to import actix_web_lab in all other crates.
So I want to write something like:

pub fn error_handler_wrapper<F, Es>() -> MiddlewareFn<F, Es> {
    return middleware::from_fn::<F, Es>(error_handler); //Compile Error: mismatched types
           ---------------------------- ^^^^^^^^^^^^^ expected type parameter `F`, found fn item
}

I hope others can use returned things directly like:

.wrap(
  mylib::error_handler_wrapper()
)

error_handler_wrapper got some compile errors and I cannot find ways to solve it.