## Usage
```rust
use std::env;
use ctrlc;
use wsclient;
fn handler(data: String) {
println!("{:?}", data);
}
#[tokio::main]
pub async fn main() {
let url = env::args()
.nth(1)
.unwrap_or_else(|| panic!("this program requires at least one argument"));
wsclient::WsClient::new(url).start(handler).await;
use std::sync::mpsc::channel;
let (tx, rx) = channel();
ctrlc::set_handler(move || tx.send(()).expect("Could not send signal on channel."))
.expect("Error setting Ctrl-C handler");
rx.recv().expect("Could not receive from channel.");
println!("Ctrl-C and exiting...");
std::process::exit(0);
}
```