use hydroflow::hydroflow_syntax; fn main() { let mut df = hydroflow_syntax! { j = join::<'a>() -> for_each(std::mem::drop); source_iter(0..10) -> map(|x| (x, x)) -> [0]j; source_iter(0..10) -> map(|x| (x, x)) -> [1]j; }; df.run_available(); }