How do you implement Debug on actix_web or awc?

[jtlindsey]

I'm trying to learn how to impl Debug for actix_web or awc so that I can print the JSON response from a third party api. For example

[dependencies]
actix-web = "4"
awc = { version = "3.1.1", features = [ "openssl" ] }

pub async fn get_data() {
    let client = awc::Client::default();

    // construct request
    let req = client.get("https://jsonplaceholder.typicode.com/posts/1/comments")
        .insert_header(("User-Agent", "awc/3.0"));
    
    // send request and await response
    let res = req.send().await;
    println!("Response: {:?}", res.unwrap().body());
}

I get the following error:

error[E0277]: `ResponseBody<Decompress<actix_web::dev::Payload<Pin<Box<dyn futures_core::stream::Stream<Item = Result<actix_web::web::Bytes, PayloadError>>>>>>>` doesn't implement `Debug`
  --> src/get_req.rs:32:32
   |
32 |     println!("Response: {:?}", res.unwrap().body());
   |                                ^^^^^^^^^^^^^^^^^^^ `ResponseBody<Decompress<actix_web::dev::Payload<Pin<Box<dyn futures_core::stream::Stream<Item = Result<actix_web::web::Bytes, PayloadError>>>>>>>` cannot be formatted using `{:?}` because it doesn't implement `Debug`
   |
   = help: the trait `Debug` is not implemented for `ResponseBody<Decompress<actix_web::dev::Payload<Pin<Box<dyn futures_core::stream::Stream<Item = Result<actix_web::web::Bytes, PayloadError>>>>>>>`
   = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)

For more information about this error, try `rustc --explain E0277`.

So i try to impl debug

use actix_web::dev::Decompress;
use actix_web::error::PayloadError;
use std::pin::Pin;

use std::fmt::Debug;
use std::fmt;

impl Debug for awc::JsonBody<Decompress<actix_web::dev::Payload<Pin<Box<dyn futures_core::stream::Stream<Item = Result<actix_web::web::Bytes, PayloadError>>>>>>, _> {
    // ... dont understand what to do here
    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
        write!(f, "Hi: {}", self.id)
    }
}

I don't know where I'm suppose to import futures_core from (or the appropriate way to figure that out) or what should go inside the custom implementation of debug to print the JSON response.

How do you implement Debug on actix_web or awc?