extern crate sf; use sf::Context; fn main() { let ctx0 = Context::new(1_234_567_891_011, 0).unwrap(); let ctx1 = Context::new(1_548_067_209_841, 0).unwrap(); loop { let id0 = ctx0.next_id(); println!("id0 = {}", id0); let id1 = ctx1.next_id(); println!("id1 = {}", id1); } }