Fetch the latest block

Copyuse reqwest::StatusCode;
use serde::{Deserialize, Serialize};
 
#[derive(Debug, Serialize, Deserialize)]
struct VersionResponse {
    version: String,
    network_version: String,
}
 
const LIGHT_CLIENT_URL: &str = "https://api.lightclient.mainnet.avail.so";
 
#[tokio::main]
async fn main() {
    let version_url = format!("{LIGHT_CLIENT_URL}/v2/version");
    let response = reqwest::get(&version_url).await.unwrap();
 
    if response.status() == StatusCode::OK {
        let response_text = response.text().await.unwrap();
        println!("Raw response: {}", response_text);
 
        let version_info: VersionResponse = serde_json::from_str(&response_text).unwrap();
        println!(
            "Light Client version: {}, Network version: {}",
            version_info.version, version_info.network_version
        );
    } else {
        eprintln!("Failed to get version: {}", response.status());
    }
    // ...error handling...
}