diff --git a/__wasm/wit-bindgen-sample/container/src/main.rs b/__wasm/wit-bindgen-sample/container/src/main.rs
index 3aee21d..730aa66 100644
--- a/__wasm/wit-bindgen-sample/container/src/main.rs
+++ b/__wasm/wit-bindgen-sample/container/src/main.rs
@@ -1,9 +1,11 @@
 extern crate core;
 
 use std::time::SystemTime;
+
 use anyhow::Result;
 use serde_json::Value;
 use wasmtime::{Config, Engine, Instance, Linker, Module, Store};
+
 use crate::fn_common::FnResult;
 
 mod fn_common;
@@ -55,7 +57,7 @@ fn main() -> Result<()> {
         console.log('query: ' + 'print_request.action');
         a.push(fetch('https://hatter.ink/util/print_request.action', {
           headers: {
-            'Test-Header': 'this is a test header'
+            'Test-Header': 'this is a test header',
           }
         }));
         // a.push(fetch('https://hatter.ink/ip.action'));