fix: doctest

Author: prestwich

src/utils/signer.rs

@@ -16,7 +16,11 @@ use std::borrow::Cow;
 ///
 /// Usage:
 /// ```
-/// let signer = LocalOrAwsConfig::from_env().connect()?
+/// # async fn test() -> Result<(), Box<dyn std::error::Error>> {
+/// use init4_bin_base::utils::{signer::LocalOrAwsConfig, from_env::FromEnv};
+/// let signer = LocalOrAwsConfig::from_env()?.connect().await?;
+/// # Ok(())
+/// # }
 /// ```
 #[derive(FromEnv, Debug, Clone)]
 #[from_env(crate)]