fmt, fixes and additions

heromodels/examples/flow_rhai/example.rs

@@ -20,13 +20,18 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
     let script_path = Path::new(script_path_str);
     if !script_path.exists() {
         eprintln!("Error: Rhai script not found at {}", script_path_str);
-        eprintln!("Please ensure the script 'flow.rhai' exists in the 'examples/flow_rhai/' directory.");
-        return Err(Box::new(std::io::Error::new(std::io::ErrorKind::NotFound, format!("Rhai script not found: {}", script_path_str))));
+        eprintln!(
+            "Please ensure the script 'flow.rhai' exists in the 'examples/flow_rhai/' directory."
+        );
+        return Err(Box::new(std::io::Error::new(
+            std::io::ErrorKind::NotFound,
+            format!("Rhai script not found: {}", script_path_str),
+        )));
     }
 
     println!("Executing Rhai script: {}", script_path_str);
     let script = fs::read_to_string(script_path)?;
-    
+
     match engine.eval::<()>(&script) {
         Ok(_) => println!("\nRhai script executed successfully!"),
         Err(e) => eprintln!("\nRhai script execution failed: {}\nDetails: {:#?}", e, e),