id_effect 0.1.1

Effect<A, E, R> (sync + async), context/layers, pipe — interpreter-style, no bundled executor
Documentation 
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//! Ex 003 — `Effect::map` transforms success without changing the environment.
use id_effect::{run_blocking, succeed};

fn main() {
  let program = succeed::<i32, (), ()>(21_i32).map(|n| n * 2);
  assert_eq!(run_blocking(program, ()), Ok(42));
  println!("003_map ok");
}