Macro mastodon_async::log_serde

macro_rules! log_serde {
    ($response:ident $type_name:tt) => { ... };
}

Log metadata about this request based on the type given:

use mastodon_async::log_serde;
tokio_test::block_on(async {
  let request = reqwest::get("https://example.org/").await.unwrap();
  log::warn!(
    status = log_serde!(request Status),
    headers = log_serde!(request Headers);
    "test"
  );
})