Make Result alias usable with any error type

src/error.rs

@@ -20,7 +20,7 @@ use {
     tracing::error,
 };
 
-pub type Result<T> = std::result::Result<T, Error>;
+pub type Result<T, E = Error> = std::result::Result<T, E>;
 
 #[derive(Error, Debug)]
 pub enum Error {