Add channel message type to Debug format of SendError

CHANGELOG.md

@@ -21,6 +21,10 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
   user explicitly enables. This is a breaking change.
 - Upgrade to Rust 2024 edition. This also bumps the MSRV to 1.85.0
 
+### Fixed
+- Make Debug impl on SendError include the channel message type, instead of just saying
+  `"SendError<T>(_)"`.
+
 
 ## [0.1.12] - 2026-01-25
 ### Fixed

src/errors.rs

@@ -85,7 +85,7 @@ impl<T> fmt::Display for SendError<T> {
 
 impl<T> fmt::Debug for SendError<T> {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        write!(f, "SendError<{}>(_)", stringify!(T))
+        write!(f, "SendError<{}>(_)", core::any::type_name::<T>())
     }
 }