```rust use flowync::Flower;
fn main() {
    let flower = Flower::
            // // Return error if the job is failure, for example:
            // if i >= 3 {
            //    return handle.err("Err".to_string());
            // }
        }
        // And return ok if the job successfully completed.
        return handle.ok("Ok".to_string());
    }
});
let mut exit = false;
loop {
    // Instead of polling the mutex over and over,
    // the fn will be activated automatically if the handle sending or return a value
    // and will deactivate itself if the result value successfully received.
    // Note: this fn is non-blocking (won't block the current thread).
    if flower.is_active() {
        flower.try_recv(|channel| {
            if let Some(value) = channel {
                println!("{}", value);
            }
        }).on_complete(|result| {
            match result {
                Ok(value) => println!("{}", value),
                Err(err_msg) => println!("{}", err_msg),
            }
            exit = true;
        });
    }
    if exit {
        break;
    }
}
} ```
can be found here here