id_effect 0.2.0

Effect<A, E, R> (sync + async), context/layers, pipe — interpreter-style, no bundled executor
Documentation 
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//! Ex 023 — `get_path` follows `ThereHere` / `Skip` paths.
use id_effect::{ThereHere, ctx, service_key};

service_key!(struct FirstKey);
service_key!(struct SecondKey);

fn main() {
  let env = ctx!(FirstKey => 1_u8, SecondKey => 2_u16);
  assert_eq!(*env.get_path::<SecondKey, ThereHere>(), 2);
  println!("023_get_path ok");
}