fix: last

src/main.rs

@@ -10,7 +10,7 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
 
     let r = ai.ask("Hello, world!", None).await?;
 
-    let response = r.last()?.text.clone();
+    let response = r[r.len() - 1].text.clone();
 
     println!("{:?}", response);